The body's delicate. This tempest in my mind
Doth from my senses take all feeling else
Save what beats there." (3.4.13-17)
I think the lines are about worries and when the mind is free from worry it is easily broken, but when it is overcome with a worry, it is so consumed with that that it becomes bold. And that boldness creates the person. This passage relates to the play because different characters are overcome with differing troubles and worries and we see the true character come out when they are dealing with them. I personally, agree with this statement because a person becomes fully transparent when they are weak and when they are delicate we see the beauty of the mind because it isn't being taken over by worries and fears.