Online Practioner Courses in Holistic Healing are Internationally Accredited. At the Atlantis Institute, we specialise in Crystal Therapy, Colour Therapy, and Aura and Chakra Anatomy Courses. These courses are Authentic and Heart-based. Learn to become a great Holistic Therapist by studying one of our Internationally Accredited Courses. Atlantis Institute has a different ethos from most online learning portals. The difference is. The Human Aspect. There is always Human involvement throughout the learning process and there is a Human Being here to assist you, should you require help. Atlantis Institute – The school of Authentic Online, Heart-Based, Practioner Holistic Healing Courses Atlantis Institute