Novelty is a natural part of human experience. The only way we can exist is if things are not as incredibly mind bending as the first time you see them.
We perceive reality from the moment we open our eyes upon being born. By the time you comprehend what reality is, it's old hat. This happens to everything, from the first time you see a good movie, to the first time you drive a car on the freeway, eventually everything that we do repeatedly loses its novelty so that the human mind isn't constantly blown by all the crazy shit going on.