The plain truth is too simple for the seeker after complexity, who is looking for things he cannot understand.

Man likes complexity. He does not want to take only one step; it is more interesting to look forward to millions of steps. The man who is seeking the truth gets into a maze, and that maze interests him. He wants to go through it a thousand times more. It is just like children. Their whole interest is in running about; they do not want to see the door and go in until they are very tired. So it is with grown-up people. They all say that they are seeking truth, but they like the maze. That is why the mystics made the greatest truths a mystery, to be given only to the few who were ready for them, letting the others play because it was the time for them to play.

What holds man back? It is his love of complexity. Life makes for man a puzzle, and like a child he enjoys the puzzle. Truth is too simple for him; he attaches importance to what he cannot understand. If he is told that there is a sacred mountain a thousand miles away he will walk to it. In the ancient days the people were told that if they walked in a circle round the temple a hundred times they would gain much, and they went and felt they had made a pilgrimage. Such is human nature. Man longs for truth, he searches for truth, and yet he wants to escape from truth. Man wants mystery. He wants something that can be put into words. So long as the seeker has that desire he will remain in a puzzle, but for the one who wishes to come out, the door is open. The heart of man is the abode of God. Christ said, 'Seek ye first the kingdom of heaven, and all these things shall be added unto you'.... Man has accustomed himself to think of things that are far from truth. Even in religion as well as in everyday life he is continually denying truth, and so he wanders far away because he becomes accustomed to everything but truth.

~~~ "Complete Works of Pir-o-Murshid Hazrat Inayat Khan, 1924 I, Through Limitation to Perfection", by Hazrat Inayat Khan