By connecting Selenite to the work we do around our crown chakra, we can wash away impurities of the mind. Including negative thoughts, negative, memories, mental blockages, and even help against insomnia. When you're experiencing mental confusion, place a selenite crystal on top of your head, and everything will immediately start making sense.
Similar to Agate, this crystal is very helpful when it comes to mental flexibility and decision making. Selenite if full of divine feminine energy and as such it also serves as a powerful ally during a woman's moon cycle.
Also can be used as a protective grid around a house, creating a safe and quiet space that does not allow outside influences in- use internally in the corners of the house. Place in the four corners of the space you wish to protect.