We all know that gemstones and crystals are fruits of Mother Earth. It is from here that they get all their powers and energies. When gems are removed from within Mother Earth, they need to be cleansed and re-energized regularly to keep them continuously active and energized.
And this is why the sage cleansing process is so important to us. Regularly, we cleanse all our stones with the smoke of burning sage to clear all negative energies. After the cleansing, we place the stones in sunlight to complete the re-energizing process.
This is also the so-called Smudging process.