The Vedic Personality Inventory (VPI), developed by Dr. David Wolf, is the most extensively researched and validated psychological assessment tool based on the three gunas. According to the Vedas, all facets of existence in this world, including the food we eat, the work we do, and our interpersonal style, are permeated by the three modes of material nature, or the three gunas. These gunas are tamas, or the mode of inertia, rajas, the mode of activity, and sattva, the mode of enlightenment. Understanding your guna profile can be a powerful tool towards self-realization, and can provide insight to what types of vocation will be most satisfying for you. Take the test here:
Know Thyself 