Perhaps your dream says you feel able to show/allow your anger about feeling trapped with your T, but not with your H (you choose avoidance, silence).
I agree there's a lot to learn about what feeling trapped means. It can be a general feeling of feeling trapped by helplessness, of being ovewhelmed, of being stuck with emotions that have no where to go, that we think don't belong yet they do because they're a part of all of us.