I dreamed that I was grabbed by my neck from a height and fell down together.
The height here means that his heart is always hanging, unstable and unrealistic.
Pinch his neck, reflecting that something is pressing him tightly and making him unable to breathe.
This should refer to the matter of arrears, which bothers him very much.
Falling down shows that he doesn't want to continue this state, just like a person who is nervous for too long will be tired if he persists for too long. He would rather go with the flow, do what he likes and relax himself.
Peace of mind is like inner peace when a person is determined to let go.
In the end, I found nothing, which means that even if your brother ignores these things for the time being, it will not hurt too much and the consequences will not be too serious.
This dream reflects your brother's desire to relax.