This is a story about the part and the whole. Should the part sacrifice the interests of the whole for its own existence, or should it submit to the interests of the whole?
What does cultivating immortality and ascending mean? Why do cultivators ascend? What harm does ascension cause to the space they inhabit?
Does that space try to stop cultivators from ascending, or help them ascend?
Ascension takes energy from the space the cultivators inhabit, accelerating its collapse. To ensure their own continued existence, some spaces constantly hunt cultivators. Others promote ascension to strengthen the immortal realm.