Links to reference

• Adwaita Vedanta (en.wikipedia.org/wiki/Advaita_Vedanta)
• Path of Action (https://en.wikipedia.org/wiki/Karma_yoga)
• Zen Buddism (en.wikipedia.org/wiki/Zen)
• Tai Chi Chuan (en.wikipedia.org/wiki/Tai_chi)
• Christian Mysticism (en.wikipedia.org/wiki/Christian_mysticism)