(Psychological / emotional perspective)
When we feel trapped in dreams, we are not usually able to break free of old patterns of thought and behaviour. We need outside help.
The type of trap will give an indication of our psychological state.
A gin trap would, therefore, suggest something is biting us and, rather obviously, a box trap that we are restricted in thought. We can gain insight into what is restricting us by taking careful note of our surroundings if we are trapped or locked in a room.