The Moon orbits around the Earth and hence the illuminated parts of the Moon visible to us changes and this results in the various phases of the Moon. The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle from new Moon to new Moon is 29.5 days. During New Moon, the Moon is so close to the Sun in the sky that none of the side facing Earth is illuminated . That is the Moon is between Earth and Sun. At full Moon, the Moon is behind Earth in space with respect to the Sun. As the Sun sets, the Moon rises with the side that faces Earth fully exposed to sunlight.

The full Moon that occurs closest to the autumnal equinox is referred to as the "Harvest Moon," since its bright presence in the night sky allows the farmers to work longer into the night, reaping the rewards of their hard labor done in spring. The full moon is a time of culmination, time for things to reach their totality, and it bring plans, ideas and projects together. This is also a time for romance, fertilization, relationships, emotions and feelings. New Moon represents new beginnings, start -ups, births, etc. It is a time to start new relationships, plant gardens/plants, and renew life. Fresh possibilities and new energy flow are seen during New Moon.