Pain and pleasure are unique experiences from the One creative energy. The yogi doesn’t favor or avoid either since both are agents of the One serving to teach the lessons to the yogi student that once are learned open the door to liberation, to unending love. The yogi yearns to be in the space of Oneness.
The illusion is that we are getting somewhere and becoming something. The reality is that we are simply waking up to the subtle truth of the One who does all.
Pain and pleasure no longer sway the yogi. Peace of mind is untouched by the two nurses of night and day. Love has filled the space. Service to humans, animals, and nature is natural. May it be so.