Few people realize how far the public education system goes and gets away with.
A couple of years ago, it was Communist mind control techniques (google tools of the mind and Lev Vygotsky) and now it is Hindu/Buddhist meditation and chanting mantras. BTW, we can't say Christmas but it is okay if the kiddos are chanting mantras and meditating.
I’ve seen pictures in the local paper of first grade classes participating in a rain dance ritual with the tribal medicine man at the nearby reservation. Pretty sure that no one informed the parents their 6 & 7 year olds were going to take part in a pagan religious ceremony that day. I would have been livid, but apparently would have been the only one upset as no parents complained to the school.