Once this spirit is developed the ever-complaining tendency vanishes. If it is not developed then this world is full of thorns that prick. Then one will have no peace, no happiness, whatever one's position in life. If a person wants to make his life easy, if he wishes to create happiness in his life, he must try to crush that ego, that Nafs, that thought of self which keeps one continually absorbed in one's own thoughts and in one's own affairs. By rising above it he will learn the spirit of friendship. And then for him the same path which was full of thorns will become full of roses. For some souls that same world which can be hell to many others, is heaven. For friendship changes man's point of view.