However, in the noumenal world, there is no form. That's because there is no time and space, nor notions. Nothing can exist and no phenomena can manifest in the noumenal world. So, "Birth and death" or "being and non-being" is out of question. This is the ultimate truth in the noumenal world.
I understand that the phenomenal and the noumenal are interdependent co-arising and are two sides of the same coin. So, either the phenomenal or the noumenal is impossible. Something can't become nothing. Nothing can't become something, either. If the phenomenal is removed, the noumenal is also removed. If the noumenal is removed, the phenomenal is also removed. It is just like the light and the darkness.
Therefore, we need to take good care of both the phenomenal and the noumenal, or both our body-mind and consciousness. If we revive awareness, we can live in the phenomenal world and noumenal world at the same time, and take good care of both our body-mind and consciousness.