The Acharas (rituals) in Sanatan Dharma is prescription to live with Ayur-Arogya-Soukhya (longevity, health, and happiness). Every ritual has at least a few or all of these eight benefits: 1. Psychological, 2. Physiological, 3. Family bondage, 4. Social bondage, 5. Community health, 6. National Integration, 7.Material benefits, and 8. Environmental Protection and sustainable healthy living. Mantras, which are universal and not confined to any religion, are classified into four: 1.Vedic, 2. Itihasa, 3. Purana and 4. Karma. Mantra is a sound sequence, which when pronounced correctly will come out in a frequency range of 3 to 7 Hz, says some studies. The studies also say that Vedic mantras increase the size of brain regions associated with a cognitive function such as memory (both short-term and long-term). The author makes you understand difficult subjects in a simple language, easy to understand and appreciate the great culture.