Is it possible for one human being to understand another? Maybe yes. Maybe no. When we are able to look beyond the appearance of a person, we may understand the essence of his soul. The essence is like a drop of rose oil from a bucket full of roses. In general, there are seven types of soul essence
King, warrior, sage, artisan, server, scholar and priest.
It is with the soul that we grasp the essence of another human being. Breath is the great gateway for understanding the essence of the soul.
Observe your breath. "Ana Pana Sati"