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This short essay was written on June 12, 2012 as part of a collection in "One Long River of Song: Notes on Wonder", where he notes on all the blessing in life he experienced or encountered. When Doyle's son Liam was born, who would have to live for the rest of his life complications of a heart defect he realized the gift of the heart suggesting he believed that despite the pain individuals face, it's important continue to value life for it still has to offer.

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The speaker is Brian Doyle, the author of the short essay, who was also the editor of Portland Magazine as wells as the winner of numerous awards for his essays and stories. Doyle's son, Liam, was born with a heart defect that would require multiple dangerous surgeries, however, his son was able to overcome it all. inspiring his fascination and awe with the heart. Doyle was also later diagnosed with brain cancer, giving insight to why he spoke with heavy emphasis on the value of  live that society often takes for granted. As a husband and father to three children, this short essay holds greater meaning as Doyle expresses extreme sentiment for the heart and the life it has given him so far.

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Doyle was moved by the beauty of nature and how often it goes unnoticed or misunderstood. He wanted to share his discoveries  and convey to other people what he felt and understood about how nature and his life should be cherished, especially as his son's heart fought for his life. He wanted to place attention on celebrating the often forgotten joys and beautiful aspects of life.

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The speaker is trying to reach people in society who undervalue their hearts because of how they consider their lives as imperfect and invaluable due to the heartbreak and emotional pain they experience. We know this because Doyle conveys in the short essay that the heart endures so much yet gives back an opportunity to live a life with significance,  suggesting that he is writing to people who disregard the value of their hearts.

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The speaker's purpose about the hummingbirds most powerful organ, the heart, is to show how the heart is more than just the pumping of blood.  Their heart is very similar to humans, it contains feelings, emotions, memories, whether they are good or bad. Doyle's intention is to illustrate how mammal's hearts contains sentimental thoughts, apart from their head. Although all mammals heart have a different function for each organism, they all experience life in a significant value.

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As the short essay begins, Doyle speaks in a compassionate and loving tone as shown in "You can spend them slowly, like a tortoise and live to be two hundred years old, or you can spend them fast, like a hummingbird, and live to be two years old." Although, as the essay goes on, he begins to speak about how the animals he was so intrigued about start suffering and having health problems. As he explains the process of how these mammals start decaying and dying, he speaks in fragile and broken tone, as if he has encountered these same emotion before. This is stated in "We open windows to each but we live alone in the house of the heart."

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Doyle uses exemplification to identify all the different chambers of the heart in mammals. In "Mammals and birds have hearts with four chambers... Unicellular bacteria have no hearts at all; but even they have fluid eternally in motion...We all churn inside.", Doyle uses examples to highlight that all creatures have different functions of the heart, and although they are not similar, they live with a sense of unique value and gift. In addition to exemplification,  the speaker uses compare and contrast as "You can spend them slowly, like a tortoise and live to be two hundred years old, or you can spend them fast, like a hummingbird, and live to be two years old." to properly demonstrate to the readers on how you can either live in an energetically like manner as the hummingbird, or a slow and boring life similar to a tortoise. Doyle additionally uses description of the heart of the whale organism, "It weighs more than seven tons. It’s as big as a room. It is a room, with four chambers. A child could walk around it, head high, bending only to step through the valves. The valves are as big as the swinging doors in a saloon. This house of a heart drives a creature a hundred feet long.", ensuring the audience that with these descriptive sentences, Doyle does indeed recognize the precise information of the animal's hearts. Furthermore helping the audience visualize what the chamber of the heart is like.

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Features (devices - figurative & syntactical, word choice, sentence structure)

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Features (devices - figurative & syntactical, word choice, sentence structure)

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Doyle's use of anaphora as he conveys that hummingbirds are "each the most amazing thing you have never seen, each thunderous wild heart the size of an infant's fingernail, each made heart silent, a brilliant music stilled" (2) which emphasizes how despite their short lifespans and fragile hearts, they are able to live to be such beautiful creatures, just by doing what they were born to do, live. This was done in order to reiterate that every second of life is precious
Doyle's use of parallelism in describing how living creatures can spend heartbeats in a lifetime "slowly, like a tortoise and live to be two hundred years old" or "spend them fast, like a hummingbird, and live to be two years old" (3) conveys that life can be lived in two ways, people can choose to go through life quickly while other may choose to life by taking things slowly, and yet, they are both able to live significant lives. He does this in order to suggest every life is valuable and is capable to living a life well lived.
Doyle then uses continuous diction to emphasize "no living being is without interior liquid motion. We all churn inside." and that even unicellular bacteria "have fluid eternally in motion..."(5). He does this in order to suggest that the heart consists of more than the pumping of blood, but the memories, emotions, joys, and pains of any living organism which emphasizes the gift of the heart in itself.
Doyle uses asyndeton and anaphora by conveying that there is "So much held in a heart in a lifetime. So much held in a heart in a day, and hour, a moment" (6) to emphasize the importance of not only a life's entire existence, but every moment experienced by the second. He does this in order to further demonstrate that life by the second holds so much value, giving greater reason to thank the heart for what it gives in an entire lifetime.
Lastly, Doyle's use of asyndeton as he conveys how "all hearts finally are bruised and scarred... repaired by time and will... yet fragile... no matter how ferocious the defense and how many bricks you bring to the wall" (6) highlights the perseverance of the heart. He does this in order to emphasize that every sorrow and pain the heart recovers from, keeps the heart fragile, and yet, endures more again and again because it is those very memories that are a part of life as much as the joyful ones. This reiterates how every moment of life should be treasured.

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Doyle main focus is pathos as he evokes emotion while explaining the significance of animal's hearts. The use of pathos in "The price of their ambition is a life closer to death; they suffer more heart attacks and aneurysms and ruptures than any other living creature." and "Hummingbirds, like all flying birds but more so, have incredible enormous immense ferocious metabolisms." provokes a sense of both happiness and sadness.
The use of logos in "Mammals and birds have hearts with four chambers. Reptiles and turtles have hearts with three chambers. Fish have hearts with two chambers" highlights how the speaker knows his scientifical facts. The usage of those scientific facts also prove the information he is giving in this short essay is accurate and correct. The use of ethos in "We are utterly open with no one in the end—not mother and father, not wife or husband, not lover, not child, not friend." demonstrates his stand on this topic and how he feels about the ability of the heart's emotion. He uses this powerful quote to show his credibility and his alliance with the animals.

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In his short essay written in 2012, Brian Doyle asserts that the heart serves a unique purpose beyond pumping blood by allowing individuals to harbor memories and emotions, and therefore should be valued for more than its biological processes. Doyle develops this assertion by exemplifying the physical differences of the heart in varying organisms to illustrate the unique purpose and life the heart provides to its host, and compares the steady, long-lasting heartbeats of a tortoise to the rapid, quick-lived heartbeats of a hummingbird to contrast that either way they are able to live significant and distinctive lives with the hearts they were given. Doyle's purpose is to convey that all living organisms have the opportunity to live valuable lives in order to emphasize that every moment of life should be treasured and individuals should not disregard the gifts of the heart. Doyle establishes a compassionate tone and shifts to a sorrowful tone with his audience of dispirited individuals who feel they live insignificant lives.