used synonymously with moksha (Sanskrit), also vimoksha, or vimutti (Pali), "release, deliverance from suffering". In the Pali-canon two kinds of vimutti are discerned: Ceto-vimutti, freedom of mind; it is the qualified freedom from suffering, attained through the practice of concentration meditation (samādhi). Vetter translates this as "release of the heart" which means conquering desire thereby attaining a desire-less state of living. Pañña-vimutti, freedom through understanding (prajña); it is the final release from suffering and the end of rebirth, attained through the practice of insight meditation (vipassanā). Ceto-vimutti becomes permanent, only with the attainment of pañña-vimutti. According to Gombrich and other scholars, these may be a later development within the canon, reflecting a growing emphasis in earliest Buddhism on prajña, instead of the liberating practice of dhyana; it may also reflect a successful assimilation of non-Buddhist meditation practices in ancient India into the Buddhist canon. According to Anālayo, the term uttari-vimutti (highest liberation) is also widely used in the early buddhist texts to refer to liberation from the cycle of rebirth. Relationship with enlightenment and awakening Peter Harvey has written that Buddha attained enlightenment, or awakening at age c.35, and final nirvana on his death. The Theravada School sees nirvana as being attained in the non-returner stage of the four stages of enlightenment. Relationship with ecstasy and bliss Nirvana is not necessarily related to ecstasy or bliss, although some commentators see such experiences as part of nirvana. Popular Western usage L. S. Cousins said that in popular usage nirvana was "the goal of Buddhist discipline,... the final removal of the disturbing mental elements which obstruct a peaceful and clear state of mind, together with a state of awakening from the mental sleep which they induce." Interpretations of the early Buddhist concept As a cessation event and the end of rebirth Most modern scholars such as Rupert Gethin, Richard Gombrich, Donald Lopez and Paul Williams hold that nirvāṇa (nibbana in Pali, also called nibbanadhatu, the property of nibbana), means the 'blowing out' or 'extinguishing' of greed, aversion, and delusion, and that this signifies the permanent cessation of samsara and rebirth. According to Steven Collins, a synonym widely used for nirvana in early texts is "deathless" or "deathfree" (Pali: amata, sanskrit: amrta) and refers to a condition "where there is no death, because there is also no birth, no coming into existence, nothing made by conditioning, and therefore no time." He also adds