Man has three bodies

There are three bodies:

1) Gross body
which is like a cage. It does not belong to me, because anything which is mine does not leave me; but it leaves me. 

2) Subtle body(Astral body)
It is called I. It can travel in dreams; ghosts have only this subtle body.

3) Intuitional body
 - this is real and seen after Realization or Perfection: this is just like bright light which can assume any shape. It has no colour. Then, if we wish, we can assume subtle body and also travel. We can also attain a gross body, if we want to enjoy pleasures.