Why We Still Reincarnated In This World?

1.    Because we still suspicious about the dhamma which teach us to become saint (never return), and that make our practicing is not focus.
2.    Because when we learn dhamma, we put another practicing by our own understanding (whether our heart still full of turbidity and ignorance) about nature law. This thing is make our practicing dhamma is not pure and not focus to target to become saint (never return).