Based on the following etymological information, what is the meaning of the word autogenous

arising from within or from a thing itself.

Explanation:

the black night was split open like the coconut

it says that it was totally black in the mind of a person but suddenly his mind opened like a coconut with the sweetness of the coconut water and the white color inside it.

or

the black night was thrown like a coconut and it slit apart with its sweet water coming out .

there is no excerpt.

put the excerpt in the comments and ill answer.