Samatha and Vipassana 

You may have heard of the two terms - samatha and vipassana. This type of meditation is based on the teachings of the Buddha. Samatha is the cultivation of tranquility of mind, and vipassana is the cultivation of intelligence. Most people when they speak of samatha meditation, they think it is practicing concentration, but true samatha is not concentration. Concentration only leads to the hypnotic state. Samatha is not the practice self-hypnosis. Properly understood, samatha means purifying and calming the mind.