And then you can keep it with you

Because if you want to take a picture of a person and you don’t have light how will you see the persons face and you need a angle or a specific line to take it example if the person wants his or her whole body to be visible.

~Court

For giving some proof over a reason

~Remembrance

For keeping hold of a scene or moment from the past

~Stories

For telling a story that had happened

The picture also looks realistic.

or make any sense.

or add a caption

It has different uses and expectations -

1. Evidence - to give proof and evidence

2. Memories - to remember and capture great moments and scenes

3. Expressing - photography can be used to tell stories and express feelings and emotions

It really dependes on what you are trying to capture if you are trying to capture a horror scene then the light and atmosphere can mate the scene eerie.