Kriya yoga is a meditation technique of controlling energy through pranayama and meditation, which speeds up the spiritual process of the aspirant. In 1861, the practice of Kriya yoga was revived by Mahavatar Babaji and passed through his disciple, Lahiri Mahasaya. Through Lahiri Mahasaya, the practice spread throughout India.
The practice of Kriya yoga is taught only through a guru-disciple relationship and after an initiation ceremony. Most practitioners of meditation spend time in self-study and practice until they are ready to be further initiated into the advanced practices of Kriya yoga. Beginning meditators are advised to use a mantra or word in order to focus their attention and progress into deeper meditation sessions.