By doing Asana, we aware the body more deeply. Make our sense organs and sensibility clear, focused and it can understand the true nature of the world. Achieving that stage will lead to gain the clarity of mind, peace and harmony in every moment of life;even outside it not!
Each bite of knowledge taking us one step ahead in the path of life. It's not going to stop us from the end; but it can reduce the pain in life what it going through. Every philosophy and science created on the base of it only. And I am pretty sure that it will remain like that till the life goes in this universe.