The 5th limb in the 8 limbs of Yoga is Pratyahara. Pratyahara can be translated as being able to understand and experience the world beyond the limitations of our five senses. The reality we live in is a prison of mind because our senses are very limited in their ability to perceive the world outside of their windows. Science has already proven that the human eye can only see a very limited spectrum of light, just as the human ear can only hear a very limited range of sound frequencies.
Our ego mind is based on our body identity, which is only limited to what the body can sense with its sense organs. This forms the Anatta, or lower self. This is the mind that is tied to the body and the part of the mind that is governed by the ego.....(read full article below)