I can confirm what said about opening Crown Chakra whitout beeing "firmly grounded" with root chakra.
It happen to my daughter. She is 38....just started on her "spirutuell travel"
She had just learned meditation, then she started with the head chakra.
She got a bright white light, but she also got a lot of voices.
It took almost two weeks to "close her down", she spoke with "ghost" and her children was always asking who are you talking to mom. (they are 5 and 8)
She have never been like this before....and this is now a year ago...and have had no more problems after she started do it right.
It learned me to be open for thing you can't physically see or explain
