Onyx is a powerful metaphysical stone known for its ability to provide strength and support during stressful times. It is believed to hold the capacity to absorb and transform negative energy, helping to prevent the drain of personal energy and fostering emotional stability. Onyx encourages wise decision-making and promotes stamina, self-discipline, and willpower. It is also a powerful grounding and protection stone, making it beneficial with mental focus, personal power, and to achieve a higher sense of control over their own energy and lives.