Asana is Sanskrit for "seat". It is no accident that this word be chosen to describe the "posture" of Yoga. The idea of the "seat" in this context refers not only to the physical position of the body, but to the position of the spirit in relation to Divinity. This idea is often referred to as the "One Seat", by Yogis and Buddhists alike. Modern usage of the word asana in reference to the practice of Yoga generally intends the lesser definition; a physical posture or pose. Patanjali, in the Yoga Sutra describes asanaIncluding:

Asana - Conditions & general directions for Good Asana Asana - Yoga Asana Poses or Postures

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Asana, Asana - Conditions & general directions for Good Asana, Asana - Yoga Asana Poses or Postures

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"There are an infinite number of Yoga asana." (Sri Dharma Mittra). In 1975, as a offering of devotion to his guru, Swami Kailashananda Maharaj, Sri Dharma Mittra set out to catalogue the vast number of Yoga asana. Through ancient texts, books, students, teachers, and his own vast knowldege, he compiled 1300 variations. These were originally published as the classic Master Yoga Chart, and 608 of these postures were recently made available in a small compendium entitled, "Asanas: 608 Yoga Poses". Although there is no way to establish an exact set of postures, this work is consi ...

See also:

Asana, Asana - Conditions & general directions for Good Asana, Asana - Yoga Asana Poses or Postures

Read more here: » Asana: Encyclopedia II - Asana - Yoga Asana Poses or Postures