Onyx teaches us the importance of self-mastery, or the ability to harness our own strength and focus, in the pursuit of our most important goals. It is a wonderfully grounding, centering, and balancing stone for anyone with great spiritual aspirations, as self-mastery is one of the most important aspects of self-realization. Attaining Enlightenment, or any other high spiritual state, takes enormous dedication and a willingness to look deeply at ourselves and our world. Onyx provides that strength, and also the steadiness of vision to see the truth and align ourselves accordingly. Onyx also provides a deep root connection, allowing us to draw energy from the wider world and universe to augment our own energy pools.