What comes from the soil will return to the soil.

叶落归根。

Though a tree be a thousand feet high, the leaves fall and return to the root.

树高千丈,叶落归根。

I am a Asian, and one returns to one's roots. 

我是个亚洲人, 总要叶落归根。

He's travelled a lot but he's now come back to China once and for all. 

他游历了许多地方,现在叶落归根又回到了中国。

I'm ready to live with my family.

我已准备好回到家中。

I'm ready to die in obscurity.

我已经打算叶落归根。