All attachment and ego must disappear.No temptation of power, for power is given only to do the Divine’s work and the power itself is the Divine’s. No attachment to work, for the work is not the ego’s, but the Divine’s. No attachment or insistence on the fruits, for that too belongs to the Divine and will come when mind and circumstances are ready. It is the same with sadhana. Only one thing is to be the aim, to be in union and contact with the Divine through love and surrender,—the rest will come out of that, whatever is needed for the manifestation.
Ref: Letters on Yoga – IV