Here is the best deal on Chakra Symbol Third Eye Selenite Wands at Gemstone Export. The third eye refers to the gate that leads to the inner realms and spaces of higher consciousness. In spirituality, the third eye often symbolizes a state of enlightenment or the evocation of mental images having deeply personal spiritual or psychological significance. An Increasing Pressure in Your Head. This is the most common symptom of an open third eye; you will begin to feel a growing pressure between your eyebrows. Selenite crystals sometimes form in thin tabular or mica-like sheets and have been used as window panes as at Santa Sabina in Rome. Selenite crystals sometimes will also exhibit bladed rosette habit (usually transparent and like desert roses) often with accompanying transparent, columnar crystals. Selenite is a crystallized form of gypsum. Chemically, it is a hydrous calcium sulfate. Gypsum is a common mineral that takes on a great variety of crystal forms and shapes. On the Salt Plains, the crystals are formed just below the salt encrusted surface.