sentences:  There are various common postures for Jain meditation, including Padmasana, Ardh-Padmasana, Vajrasana, Sukhasana, standing, and lying down.The 24 Tirthankaras are always seen in one of these two postures in the Kayotsarga (standing) or Padmasana/"Paryankasana" (Lotus).Sagarmal Jain divides the history of Jaina yoga and meditation into five stages, 1. pre-canonical (before sixth century BCE), 2. canonical age (fifth century BCE to fifth century CE), 3. post-canonical (sixth century CE to twelfth century CE), age of tantra and rituals (thirteenth to nineteenth century CE), modern age (20th century on).