You have heard the saying "a sound mind lives in a sound body." Have you ever wondered that it might be the other way around? Yes, Yoga teaches us that it's not mind that lives in the body but body that lives in the mind.
See, you feel your body not as a whole but as an image of individual sensations combined together by mind and memory. It might be slightly difficult to understand--but it's very easy to see this--you feel more of a body part when it's stressed--if you have a headache you feel head, if you have toothache, you feel tooth and so on. When you are very relaxed you don't really feel any part of the body. If you meditate and go very deep into it you would realize that body has disappeared and if you go even deeper even the mind will disappear and only the presence 'I am' will remain.
You have projected the mind and mind has projected the body and withdrawal also happens in the same order--you realize that body sensations have disappeared when you feel very relaxed and then mind disappears and you alone remain.
You might feel eerie and say " I don't believe it because it's not logical." I see myself having a body. Yes, you see that there is a body---by which media you come to know that?
It's our train of thoughts which keeps on creating a picture of our body moment after moment by collecting all the perceptions from different organs/parts of the body---if there is lacking some sensation--the memory fills the gap and you continue to believe that you have a body. Similarly you project this universe whereas you believe that you are a product of universe!