Your pineal gland is what many refer to as your third eye. It is the part of the brain that connects your consciousness to this physical plane of existence. Many things in our society inhibit the growth and functionality of our pineal glands. Fluoridated water calcifies the pineal gland and disconnects you from reality and your true spiritual nature.
Maintaining a healthy pineal gland is vital in maintaining a healthy body and mind. It is also the gateway to the spirit realm and all it has to offer, including lucid dreams, astral projection, out of body experiences and our dormant but present psychic abilities we have long lost touch with in modern society.
If interested, one thing you should try to decalcify and activate your pineal gland is sungazing. Stare into the sun as it's setting or rising over the horizon an observe it for what it truly is. A functional pineal gland leads to a healthier and happier life and connectivity with yourself and your surroundings.
Here's a good video on the matter:
https://www.youtube.com/watch?v=CTC_eeJj7zE