It's reasonable to think that the Universe came into existence without some sort of creator, that it wasn't intelligently designed in some capacity, and that it came from nothing out of randomness and for no reason?
That you came from your father's penis as a drop of fluid, to be formed into some living thing, and ultimately be given birth from your mother's vagina into this world for no reason, out of randomness, and with no sort of intelligent force behind all of this?
You've already indicated you yourself think it's reasonable to think things can come into existence without a creator, by asserting the existence of such a thing in the form of a creator.
I'm entirely comfortable with the concept of my being here due to natural selection rather than a mystical purpose. Don't make the mistake of thinking "everything must have a purpose" to be a globally shared worldview.
That you came from your father's penis as a drop of fluid, to be formed into some living thing, and ultimately be given birth from your mother's vagina into this world for no reason, out of randomness, and with no sort of intelligent force behind all of this?