That's as good an answer as I've ever heard. I'm personally very scientifically curious, which causes me to lean more heavily on "how?" than "why?". The how always seems so much more objectively verifiable than the why. Why could be anything or nothing, and we hoomins have such a tiny perspective. That's not to say I'm not interested in why, I just find the search more stressful than simple acceptance when I know that I can never really find an absolute answer.

Perhaps the better question is why humans feel the need to ascribe meaning to the existence of the universe. Nature, in general, does not require meaning or purpose. Indeed, the only meaning to life itself is the meaning we give it. It is not valuable except that we put value on it, and we don't even always put the same value on it. The same is true of the universe at large.