The fundamentals consist of: Emptiness, Stillness, Silence, Integrity, Sincerity, Spontaneity, Balance, Harmony, Spirit, Energy, Vitality. Practiced regularly and routinely in the service of Our Original Nature Within the Context and Circumstances (The Here and Now) of our life in each situation as it arises. In conjunction with our dedication to the work of doing the right thing in the right place, at the right time, no matter what, without interest in, or thought of, profit, gain or merit, for the simple joy of doing it and the delight/satisfaction of having done it, all our life long. If you can find a better life plan than this, buy into it and live to implement it every day for the rest of your life.
We do not need to posit a creator god to explain the existence of everything. All we need is time and something on the order of matter. The smallest kind of matter will do. Even dark matter if that's the best you can manage. Time and matter can source attraction and repulsion, magnetism and gravity. And light. If electrons can create electrons by crashing into each other, well then, you can see how it would only be a matter of time before we get exactly what we have, more or less, just as it is. Of course, it could be much different than it is in Oh, so many ways, but the difference would be in the details, and there would be some configuration of something here because that is what time and matter do. Can't help doing. Must do. It is their nature to do it. And then watch the show, high fiving one another, and shouting "Can you believe we did all this???" Wooping and hooraying far into the millennium. And then, doing it again.