Man is born to our world with very small desires that gradually grow: soon there is a desire for a family, power, respect, and knowledge. Yet, these are only experiences of this world. The desires demand of the brain their necessary amount of development. In other words, the mind evolves to the degree that is necessary to satisfy one’s desires. But if we should desire spirituality, if we suddenly feel that we want something not available in this world, then we begin to search for it.
Finally, our every desire begins to grow within us. We become more egoistic, and therefore smarter. Greater worldly desires are born, especially sexual ones.

In fact, the higher we rise toward the Creator, the greater our desires and pleasures become.