Plato believed that all human beings in the past had two faces and two sets of limbs, which were synthesized from the two current people. Because Zeus was afraid of human power and did not want to exterminate human beings, he split human beings in half and became the people they are now. From then on, human beings began the process of looking for their other half. This is the reason for the emergence of human love. In Plato's view, human beings can only be complete when they find their other half, although this other half may be of the same sex or the opposite sex. Everyone is a semicircle, and you have to find the right other half to be perfect. But love is not perfect when two people fall in love.