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## Chapter 8: The Twelvefold Contemplation
**Verse 713:**
The extent of the world is determined by the movement and stillness of living beings and matter. Beyond this, there is infinite space, devoid of any matter, called "aloka-akasha" (non-world space).
**Verse 714:**
This world is shaped like a "vetrasana" (a type of stool) in the lower region, a "jhallari" (a type of musical instrument) in the middle region, and a "mridanga" (a type of drum) in the upper region. Its total length is fourteen times the width of the middle region.
**Verse 715:**
In this world, living beings experience happiness and suffering, which are the results of their own actions. They are caught in the terrifying cycle of birth, death, and rebirth, endlessly traversing the ocean of existence.
**Verse 716:**
A male can become a female, and a female can become a male. A person can be born as a man, a woman, or a neuter. A mother can become a daughter, and a daughter can become a mother.