Petrified wood is known to stabilise during transformations, providing a grounding energy during meditation, enhancing a sense of safety and security. What is petrified wood? Trees that have been buried by many layers of volcanic ash, sediment causing the wood to decay and minerals such as silica, iron, and calcium carbonate seep into the tree's cells which then replaces the organic material with rock. Petrified wood is great for grounding, protection and to ease into a calm mind.