Strengthening the chest

After fifteen minutes I saw a very nice old man running with his hands behind his head. He said to me, "Good morning."

I asked him, "Is there any reason why you are doing that?"

He answered, "To strengthen my chest."

In silence I said, "You don't need to, but I want to strengthen my chest."

From:Sri Chinmoy,Salutations, numbers 9-12, Agni Press, 1983
Sourced from https://srichinmoylibrary.com/slt_3