108 is a very important number. Hindus do everything as a count of 108. The beads, the mantras, the yantras..
Sadhguru explains the importance of 108 and why it is so significant to a Spiritual seeker and central to Yoga.
Hindu deities have 108 names, and there were 108 Gopis as well.
Btw, in mathematics, The equation results in the golden ratio.