Toward Ecosophy

Could you either point me to a good resource or provide a short synopsis on what exposing the pineal gland to more light does? IIRC, you previously said that ascetic religions tend to encourage that. I don't consider myself ascetic, but something happened that resulted in short-term hair loss. (I still probably have more hair than many people, but I definitely have less than I used to.) I prayed to my gods for good health and I got the response that my health is good, they just wanted to expose my pineal. I looked online to see what exposing the pineal does and there is a lot of stuff on the internet, a lot of contradictory, and I don't know enough to evaluate if a site is worthwhile or garbage. Thanks in advance.