Veritas Amoris.

It is indeed correct that ultimately all is One—that all is Self. A theologian might express this by affirming that all is God or that there is only God, and that the observed diversity in the world, life, and the universe is a manifestation or expression of the One which encompasses all. Now diversity doesn't exist merely for the sake of play or sport as some would like to posit but primarily for the purpose of companionship, also known as love (the Latin term Ludus Amoris comes to mind); it is, after all, not good for one to be alone. In this sense, the purpose of diversity, why there is man and woman, why there is life, is first and primordially companionship, i.e., love."
~ Wald Wassermann