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**Twenty-first: The Establishment of Understanding**
* This is the twenty-first *Avagahana-Sansthana-Pada* of the *Prajnapana Sutra*.
* This *Pada* examines various aspects related to the body. While the body was discussed in the twelfth *Sharira-Pada* and the sixteenth *Prayoga-Pada* of the previous *Padas*, this *Pada* focuses on which of the five bodies belong to which of the twenty-four *Dandakas* (hells, etc.), and how many bodies, both bound and liberated, exist in terms of substance, region, and time. The sixteenth *Prayoga-Pada* describes the activities and movements of the soul based on mind, speech, and body.
* This *Avagahana-Sansthana-Pada* elaborates on the types, shapes, sizes, *Pudgala* accumulation, number of bodies found in a single being, the scarcity and abundance of substances and regions within the body, and the scarcity and abundance of *Avagahana* through seven gates.
* The body is the closest to the soul and aids in spiritual practice. Self-development, chanting, austerities, meditation, service, etc., can only be achieved with a healthy and strong body. The *Aharaka* body is so miraculous, light, divine, magnificent, and crystal-like that if a *Chaturdasha-Purvadhari* monk has any doubts, he sends this body to the *Tirthankara*. He receives his answers through this body. After that, the body quickly merges back into the *Audarika* body.
* This *Pada* has seven gates: (1) *Vidhi-Dwar*, (2) *Sansthana-Dwar*, (3) *Pramana-Dwar*, (4) *Pudgala-Chayana-Dwar*, (5) *Sharira-Sanyoga-Dwar*, (6) *Dravya-Pradesha-Alp-Bahutva-Dwar*, and (7) *Sharira-Avagahana-Alp-Bahutva-Dwar*.
* The first *Vidhi-Dwar* describes the five main types of bodies and the variations from one-sense to five-sense bodies. The five main types of bodies are: *Audarika*, *Vaikriya*, *Aharaka*, *Tejas*, and *Karman*.
* The Upanishads discuss the five sheaths of the soul. Of these, only the *Annamaya-Kosha* is associated with the *Audarika* body.