To do Sri Aurobindo’s yoga is to want to transform oneself integrally, it is to have a single aim in life, such that nothing else exists any longer, that alone exists. And so one feels it clearly in oneself whether one wants it or not; but if one doesn’t, one can still have a life of goodwill, a life of service, of understanding; one can labour for the Work to be accomplished more easily— all that—one can do many things.
Ref: Questions and Answers 1955