To work on your self
One way to work on your self is by being present in the body. Another way is by expanding the heart. A third way is by quieting the mind. The wise person finds a way to work on all three at the same time.
There are times when we go on a long tramp with someone for whom we greatly care. There has been talk, but it has now faded, and we can stalk mile after mile together without a word but in perfect communication – each glad for the other's presence, each glad the other is alive, each grateful to be the other's friend, each feeling understood, each cherishing the other.