Feet Talk Episode 2 Crystal Sinful Soles Questionnaire Gemstones can heal your feet. When positioned on your soles, jewels have the ability to alleviate pressure and encourage harmony within your body. The unique properties of these crystals are thought to enter the vibrational centers in your feet, bringing forth a feeling of peace. By sporting jewels in your footwear, you can feel the magic of crystalsinfulsoles.