This age that we find ourselves in is called Kali Yuga, the dark ages. And during this time when there’s a huge spiritual disconnection, we are taught that the physical body is not a barrier to enlightenment. Quite the contrary. The body is used as a vehicle to enlightenment. The body serves as our teacher to show us parts of ourselves that may be hidden before.
As you practice asana, observe the physical body— the sensations, the reactions, the patterns. Bring the unconscious to the level of consciousness, and then this body could serve as an instrument so you could be free.