I`ve practiced Buddhism in the Nichiren tradition, within the SGI (Soka Gakkai International) movement for 46 years. I chant Nam-myoho-renge-kyo every morning to ground the entire day.
In this tradition the 9th consciousness is the pure cosmic life force of the universe, permeating all realities including our lives. Chanting Nam-myoho-renge-kyo is activating this connectedness: the mutually inclusive relationship of life and all phenomena. This goes far beyond the duality of action and reflection, bringing possibilities into being that have deeper connections with us and others. You can experience the effects of chanting for yourself as you go through the day.
The 9th consciousness is deeper than karma (8th consciousness). Activating this `greater self` purifies the limited self (7th consciousness), and thinking mind (6th consciousness) as well as the 5 senses (5 consciousnesses).