Buddhism does not accept a theory of God, or a creator. According to Buddhism, one's own actions are the creator, ultimately. Some people say that, from a certain angle, Buddhism is not a religion but rather a science of mind.
Here's an example: someone says, "Master, please hand me the knife," and he hands them the knife, blade first. "Please give me the other end," he says. And the master replies, "What would you do with the other end?" This is answering an everyday matter in terms of the metaphysical. When the question is, "Master, what is the fundamental principle of Buddhism?" Then he replies, "There is enough breeze in this fan to keep me cool." That is answering the metaphysical in terms of the everyday, and that is, more or less, the principle zen works on. The mundane and the sacred are one and the same.
Buddhism ... is not a culture but a critique of culture, an enduring nonviolent revolution or "loyal opposition" to the culture in which it is involved.
The nature of Buddhism, as I understand it, is to believe that we are all pure and radiant at our core. And yet we see around us so much evidence that people are not acting from a place of purity and radiance.