My novel YOGA BOOTCAMP describes the events of being initiated into brahmacharya and being given the two strips of cloth cut from the guru’s robe as our new underwear, supposedly to restrain our male sexual impulses. As a bit of real-life evidence, here we are at the Poconos Ashram in Pennsylvania in mid-1972. The girls found it highly amusing, especially since we were all living under celibacy.
Jnana's Red Barn 
good flashback to a different time..