Healing crystal Worry stones also known as palm stones, are great for holding in the palm of your hand and are used for relaxation, meditation and to help reduce anxiety. Their silky smooth surface is perfect to hold and rub with a thumb or forefinger when feelings of stress or anxiety start to take hold. This simple act of rubbing your thumb across the glassy surface, is a known trick during meditation as it can help take your mind off what ails you at that present, in the same way people hold and use "worry beads"