According to the metaphysical point of view,

we see that an element attracts its own element. For instance two streams of water will be attracted to one another. But although there will come a time when they join together, efforts will have to be made by both. When fires start at two sides of a certain place, each fire will be attracted to the other and in the end they will meet and become one.

In the same way an artist is attracted to an artist, a thinker to a thinker, a scientist to a scientist, and the man of action to the man of action. They are not only attracted because there is the same element in both of them, but because there is a comfort, a happiness in being attracted by the same element. Think of the joy when two people of the same thought meet together. It is greater than a joy, greater than a satisfaction, it is that happiness which is promised in heaven.