Why do Hindus perform Parikramas and the different Parikramas for different Gods

In Hindus, a common practice when they visit temples and are around idols of Gods, is to perform a Parikrama. And a Parikrama is basically a circumambulation, where devotees walk in a circular path around the deity or the temple.
Many believe that doing a Parikrama means going through the cycle of life, death, and re-birth, and when people do it around the Gods or the temples, they further their belief in the eternal nature of the divine, in a way that the Gods are responsible and the life, death, and re-birth of a mortal is in Gods’ hands.This Parikrama is done around temples, sacred trees, rivers, hills, or even images or statues of the deities.