Kriya Yoga is a spiritual technique that aims to accelerate the spiritual evolution of an individual by awakening the dormant energies within. The technique was introduced by Lahiri Mahasaya in the 19th century and was popularized by his disciple, Sri Yukteswar Giri. One of the most renowned Kriya Yoga masters is Swami Hariharananda Aranyan, who brought the technique to the Western world.