Brahma Vidya
CHAKRA
The basic quantum of time is 120 years which is the Param Ayus of the Human birth (Parasara gives the exact figure of 120 Years & 5 days, but we stick to the round figure of 120 years for the preliminary understanding). As explained earlier, this is also two cycles (Aaroha or increasing and Avaroha or decreasing quality of time) of Jupiter & Saturn of 60 years each. This is also a Kali (literally ONE) Chakra.