All senders, receivers and holders of energy and information, holding a crystal is like using a microphone or a megaphone. They are powerful transmitters.
If a quartz crystal has six sides, as does water, and we are mostly water, could it be that they help us to remember our state of physical perfection (i.e. a life with an absences
We originally wore crystals to assist us by protecting us in battle (Lapis Lazouli), for healing - reducing pain (gold), antiseptic (silver). And so much more – not just pretty jewelry.