sentences:  The Acaranga for example, mentions Trāṭaka (fixed gaze) meditation, Preksha meditation (self-awareness) and Kayotsarga ("‘kāyaṃ vosajjamaṇgāre’", giving up the body).The Acaranga also mentions the tapas practice of standing in the heat of the sun (ātāpanā).The Acaranga sutra, one of the oldest Jain texts, describes the solitary ascetic meditation of Mahavira before attaining Kevala Jnana as follows