The dangers of meditation

http://masteringeft.com/masteringblog/about-meditation/meditation-articles/2247-2/

This is on Patricia Carrington’s website and she is the only expert person who has drawn attention to this aspect of meditation…A few years ago I read an article by the Welsh poet Gwyneth Lewis who went to a long 2 day meditation course in a convent.She became distressed but was persuaded to stay.
She became severely depressed not long after that…. the nuns didn’t know it could be bad.
Basically, clichedly I say to myself:
Don’t do too much of anything except being kind to yourself and then to others if possible