The number 108 has astronomical roots. The distance between the earth and the sun is 92,955,807 miles (149,597,870 km) . The diameter of the sun is 864,938 miles (1.392 million km). 92,955.807/864,938 = 107.5 which is about 108.
Why the number 108?
The number 108 is considered a sacred number in Hinduism, Buddhism and yogic tradition. Malas or Japa beads come in a string of 108 and are used for devotional meditation, mantra and prayer. With each bead a mantra or prayer is repeated to meet a total of 108. The Meru bead is the larger bead or tassel on the mala and is not part of the 108. This is the guiding bead and marks the beginning and end of the mala/chant/prayer/mantra.
Here are a few interpretations of the significance of the number 108.
The Sanskrit alphabet has 54 letters. Each letter has a masculine (Shiva) and feminine (Shakti) energy 54 X 2 = 108
Desires. There are said to be 108 earthly desires in mortals.
Time. It is said we have 108 feelings. 36 related to the past, 36 related to the present, and 36 related to the future.
Astrology. There are 12 constellations and 9 arc segments. There are 12 houses and 9 planets. 12 X 9 = 108
The diameter of the sun is 108 times the diameter of the earth.