“O, blood, blood, blood!" and

“🤬 her, lewd minx!"

We see the self writhing jealousy that has taken in the inner soul of Othello. It's eating his personality alive, filling his void of love with that of anger and quite literally, blood seeking revenge. The constant repetition and exclamation in his short remarks always gives a blunt response for as to how he perceives these revelations.

Furthermore, the whole matter strips away his honour and his appearance as a military general is severely attacked. Once again, Othello's insecurities build up and consume him, illustrating him as the animal he was once made out to be by others.

In the Elizabethan era, magic was a taboo & had negative connotations. 
Any unexplainable events were immediately blamed to have happened because of witchcraft, magic & sorcery

By playing into the role society has given him, rather than "running away" from it as he has for the past 3 acts, he highlights the change in his character from the start of the play, demonstrating the effect Iago and his jealousy has had on him.

Othello, has been raised around the notion of witchcraft and magic and believes that a handkerchief is enchanted to make people fall in love. This has created a great amount of distrust that he harbours towards women (due to majority of accused witches being women), including his wife,, Desdemona. This is relevant as this distrust, combined with his insecurity grows into a deep jealousy which eventually leads to his own demise.

Othello recalls his mother telling him that the Egyptian woman who gave it to her said “if she lost it / Or made gift of it, [his] father’s eye / Should hold her loathed and his spirits should hunt / After new fancies” (Shakespeare 1329-30). This displays the importance of the handkerchief to Othello, highlighting why he believes it to be solid proof of Desdemona's unvirtue

it was easier to inflict fear upon the audience at the time by incorporating witchcraft and sorcery into the storyline - Othello, an outsider and black man, enchanted Desdemona, a Venetian high-status woman, to be his wife

During Elizabethan society, the devil was portrayed using black images, as a result there was an insinuation that Othello possesed evil powers, which is contradictory to how he has been described as a virtuous and holy person.

Ignorance of superstition tended to be quick to be believed to be real, thus resulting in fictions. Fiction of faith and knowledge of reality vs magic.

• The handkerchief gifted to Desdemona by Othello through marriage is a symbol of her chastity. When the handkerchief was found in Cassio's quarters it implies Desdemona had given her virginity to Cassio as opposed to her husband Othello. This is because the handkerchief has a pattern of strawberries made into the fabric. It is understood that the red colour of the strawberries comes from the preserved blood of dead virgins. It is ironic that Othello stems his anger towards Desdemona from the fact that the handkerchief is magic and that if she had given it away, she has cursed herself. The irony continues through the fact that Othello had denied utilising magic or mysticism to win over Desdemona in the beginning of the play. The reason for such irritation and frustration with the loss of the handkerchief is that Othello has lost his power and by saying forget losing the symbolic piece of cloth he therefore also removes from his mind the loyalty with his wife (the loyalty provided Othello with security and power in the Venetian society). Iago has a huge role in this play as he is the catalyst for drama and the manipulator in this play as in reality Cassio and Desdemona have never had any sexual relations however, with Iago bringing to the light small faults or mishaps which are planned, further brings out the Moor own insecurities in relation to his colour and his place in the community.

Though later in the play, Othello experiences a fit when suspecting the affair between Desdemona and Cassio which silences his voice. Therefore Othello suffers the loss of his intelligent speech which he utilised in order to construct his identity. This leads to him speaking in much shorter and harsh phrasing, losing his identity of a good general.

This simple line During ACT IV reveals The cyclical nature of appearance/identity in the play. Othello, in all his jealousy, believes Iago is telling the truth of Desdamona and believes he is justified of striking her. This scene here reflects Iago believing he was justified in his jealousy started destroying the venetian army from the inside out, this jealousy then spread like poison then took over Othello’s identity and appearance making him believe he is Justified in being angry at everyone around him for Desdamona’s “infidelity” revealing how Iago's sense of self took over Othello's sense of self.

This quote accentuates the use of Othello's outlook of society with everyone being considered honest and truthful in his eyes. Iago uses this known information and abuses Othello's gullible nature to then provoke curiosity out of Othello by leaving him on a cliffhanger. While there are two reasons as to why Iago chose not to answer, it can be assumed due to the manipulating nature of Iago this was done purposefully to portray Iago as an "innocent" honest man in Othello's eyes. This gave off the perception that the actions Desdemona and Cassio were doing was too distraught to say out of his mouth. Therefore, Iago's manipulation is significantly more subtle in this act to Othello due to there already being an established trust between Othello and Iago which is fueled by the gullible nature of Othello.