1- Body language is an important aspect in dreams. Our dream characters may develop exaggerated movements or postures to highlight certain information which we need to recognise.
2- We often pick up information on a subliminal level without being able to understand why.
The postures we or others adopt in dreams often give us the answers to those questions that need answering.
3- An exaggerated posture will indicate emotions. Living and being mean that we are capable of adopting certain recognisable stances and postures (as in yoga) in order to progress spiritually.