Fear is born of knowledge.
A child will as innocently play with a snake as a teddy bear. A young adult as naively dabble with love as life itself.
Bearing a child is as close as we get to original Creation—something from nothing. Creating a child creates an iredeemable future and changes forever the fabric of life. Procreation can thereby come to symbolize immortality. A symbolic way of cheating our inevitable common-fate, if you like. Love, a mechanism to preserve this symbol, worms its way into the heart and settles there. It flourishes faithfully without fear or doubt, nourishing the parent-child dyad.