Amethyst opens your crown chakra, stimulating spiritual growth, enlightenment, and self realization. Working with Amethyst can help raise your vibrational frequency. 
Place amethyst under your pillow to protect against recurrent nightmares and assists with insomnia that is caused by an over active mind.
Hexagonal shaped crystals are used for protection and cleansing. It symbolizes strength, protection, and helps balance opposing forces. 
It can Also be used as a pendulum. Which assists with finding answers in a ritual called pendulum dowsing.