Selenite is a light carrier, so you can place your selenite somewhere where it will get some sunlight.
Selenite crystals can be cleansed and recharged by leaving them under the moonlight. The white light of selenite matches the white light of the moon.
Selenite is a protective stone that will help keep negative energies away.
You can wave a selenite wand up and down your entire body, breathing calmly, while visualizing its bright light restoring your vitality.
Meditating with selenite can help you enhance your spiritual practices.