People constantly seek something "greater than themselves". For some people it is to stick to a religion, in where they are part of a greater whole, serving a powerful being that is greater than them. For others it is to stick to their nation, as something greater than them, develop pride and love to their nation, in terms of nationalism, to feel safe and secure that they are part of a greater whole. For the ones who reject religion for its superstition and irrationality still feel the void of being part of a greater whole. So they make the universe or Nature as their own God, it appeases them to think they are part of a greater entity themselves known as Nature. And there are those who make their beliefs objective, either the belief of objective purpose, or morals, or goals, those who pursue these beliefs make themselves feel that they are part of a greater whole.
I have rejected those answers! That is the philosophy of the weak. It is the mind of a slave to make himself part of something greater than himself. I do not need a God. I do not need anything greater than myself. I am God! Instead I make myself the greatest. I do not need a master over my own life, I am my own master. Nor do I make myself a master over others. The others can become strong also by making themselves their own masters. We can all be our own master. We can all become strong. I am the greatest human who exists. I have killed God, and in the process, became a God myself. Let us look for a day when the world consists of the strong and powerful men rather than the weak and the pathetic.