Nobody ever says, "I made inspiration" or "I planned inspiration".
We almost always say, "I was hit by inspiration."
Somehow, from out in the wide unknown, inspiration smacks you in the head, and you become its host, at least for a while.
It brightens your thoughts, sharpens your mind, and puts a gleam in your eye.
Thing is, inspiration doesn't always hang around. It leaves if you don't do anything with it.
According to one school of thought, it wants to be expressed, so it leaves a passive host to find another who will do something with it.
I don't really buy that, partly because it's too simplistic, and partly because it has the marks of a very human tendency - anthropomorphising the unknown.
But I do think that inspiration isn't entirely accidental. I think it hits those who have the potential to carry it out.
They just have to.
Carry it out.