The Moon
phases of the Moon. We already know about the moon
cycle—we can walk outside at night and see which lunar
phase we are in.
This is not the place (and I am not the expert) to
describe to you either the very complicated astronomical
motions these three heavenly bodies produce, or the
profound theories of what all of this motion means in a
philosophical sense. What is quite accessible is the
concept of "lunar gaps."
As we know, the moon cycle goes through its phases
from new moon to full moon and back to new moon, in a
cycle of about one month—some 30 days. This is seen
as an ongoing cycle of activity, endless in extent—it
goes on forever.