From the Sufi Master, Hazrat Inayat Khan: The tendency to doubt, to be depressed, the tendency towards fear, suspicion and confusion, the tendency to puzzle -- where does it all come from? It all comes from the thought of getting something in return: 'will another give me back what I have given him? Shall I get the just portion back, or less?' if that is the thought behind one's acts there will be fear, doubt, suspicion, puzzle and confusion. For what is doubt? Doubt is a cloud that stands before the sun, keeping it from shining its light. So is doubt: gathering around the soul it keeps its light from shining out, and man becomes confused and perplexed. Once selflessness is developed, it breaks through the cloud saying, 'What do I care whether anyone appreciates it; I only know to give my service, and that is all my satisfaction. I do not look forward to get it back. I have given and it is finished; this is where my duty ends.' That person is blessed, because he has...