This is a common idea in Buddhism.
We come out of nature as a wave comes out of the entire ocean before returning. So might one say that the wave is born out of the ocean, and that we are born out of nature?
From how I understand and believe it is that everything goes into and out of one another without needing an origin nor an end. Once you try to find an origin, you excite the waves again. Once you try to end it, you try to calm waves naturally flowing. Once you sit back and let the waves go, they naturally settle. So when the moon turns and the waves go at it again, you're not bothered by their origin nor their end. That's nibbana. (In my own words)
This is from the our prayer book I received at our ceremony...
"...The marvelous Truth is inconceivably difficult to ascertain. Trying to seek it only brings about exhaustion. Not one single thought arising, that's true seeking. As the seeking mind persists, we remain absolutely unknowing." Namu Sakyamuni Buddha. An excerpt of a prayer to The Buddha.
As for the self thing, I never understood that. It always sounded like riddles and rhymes for something simple. There is no " I " means there is no permanent self. Everything like the wave is changing and flowing so saying I-Me-and other
definite pronouns makes us think that "I won't change." To me, I is just an English pronoun. The unchanging nature of life is the nature of life regardless of what pronouns we use.
Everything changes. There is no origin. That's probably why the concept of god of abraham isn't spoken of. It can't exist in a non-origin world.