As the day dawns, all beings emerge from the unmanifest. And when the night comes, they dissolve into the same unmanifest.
Day and night have wider relevance and application. Related to the Creator, they imply longevity of material existence; but in human life, they explain the process of creation and dissolution.
They show how time, place and objects manifest and also cease to be. The unmanifest causes the manifest. Our own sleep and wakeful states reveal the mystery.
Despite its gross, solid nature, the manifest springs during the day from the unmanifest within the individual, and at night sinks into the unmanifest within him. This rising and setting occurring every day is a direct experience of all, like zero giving rise to all numbers, which, when multiplied by it (zero), dissolve into zero!
Wakeful display, and its obliteration, the sleep, need no further proof at all. As creation and dissolution cannot be subject to our direct observation, one can only infer them, for which our wakeful and sleep states become ample ground; their primary purpose is to reveal the mystery!