Do you believe life forms exist that we cannot see, like Fairies, Brownies, Elves, Goblins and Leprechauns?

Mythological creatures that generally look like very small humans, such as fairies, goblins, gremlins, dwarves, imps, pixies, and gnomes are commonly referred to as the little people. Though Europe has the most types of them, belief that they exist in many different forms is found worldwide, in many different cultures.