Before delving into the names themselves, one must understand the vessel that holds them. In Vedic tradition, the number 108 is considered Harshad , meaning "the great joy." It connects the sun, the moon, and the earth: the diameter of the sun is 108 times the diameter of the earth, and the distance from the sun to the earth is 108 times the diameter of the sun. Similarly, the distance of the moon from the earth is 108 times the moon's diameter.
Beyond faith, neuroscientists have studied the effect of chanting the : 108 names hanuman