Tantrism is also the source of the male and female symbols of the thunderbolt (vajra, also called dorje) and the bell (ghanta), usually present in Buddhist ceremonies, and of the system of lamas or high priests, who are held to be reincarnations of holy men.
The high priests are seen as reincarnations of holy men.
The boys knew from the beginning that no matter what choice they made, they wouldn't be divided.