All the beings in the world, mammals, birds, marine species, etc. have an in-born lust so that they are able to mate and reproduce. Reproduction is the only way to continue the existence of the species. As such, lust is a basic biological need.

The emotional intimacy dimension of love is best characterized by feeling love for someone rather than being "in love" with them. The emotional intimacy dimension focuses on liking, friendship

LOVE- something that cannot be controlled, some kind of good feeling. feeling between two persons.