One must be very great, very pure, have a very high and very disinterested spiritual consciousness in order to be successful without being affected by it. Nothing is more difficult than being successful. This, indeed, is the true test of life!
When you do not succeed, quite naturally you turn back on yourself and within yourself, and you seek within yourself the consolation for your outer failure. And to those who have a flame within them—if the Divine really wants to help them, if they are mature enough to be helped, if they are ready to follow the path—blows will come one after another, because this helps! It is the most powerful, the most direct, most effective help.
If you succeed, be on your guard, ask yourself: “At what price, what cost have I bought success? I hope it is not a step towards…”
Ref: Questions and Answers 1954