At a very middle of alokåså¹a, there exists human-like lokåkå¹a having a dimension of 343 rajjus and being contaminated with five types of fluids like Jîva, Pudgala, Dharma, Adharma and Kåla. Beginningless and endless, it was generated by itself.

**1. Adholoka —**its base is similar to vetråsana (wedge).

**2. Madhyaloka —**it appears like the upper portion of a standing mâdanga (trumpet).

**3. Urdhvaloka —**it appears like a standing mâdaga.

The complete loka has a height of 14 rajjus and a thickness of 7 rajjus throughout. Adholoka and Ýrdhvaloka have a height of 7 rajjus each (with 7 rajjus as hell and 7 rajjus as heaven) and in between them lies the Madhyaloka having a height of 100040 yojanas, the height of Sumeru stretched over Madhyaloka. The breadth at the base of hell is 7 rajjus and it reduced to 1 rajju in Madhyaloka and again increases to 5 rajjus in fifth heaven and again decreases to 1 rajju in Siddha¹ilå ¼fl)f’kyk½.

Passing through the middle of three lokas, there exists a Trasanålî (tube) having a length and breadth 1 rajju each and height a little less than 13 rajjus. It contains Trasajîvas

The detailed description of variation of breadth from base of Adholoka to the top of Siddha¹ilå is given as under:

Place | Breadth |

Base of Adholoka | 7 |

Near the 7th earth | 6 1/7 |

Near the 6th earth | 5 2/7 |

Near the 5th earth | 4 3/7 |

Near the 4th earth | 3 4/7 |

Near the 3th earth | 2 5/7 |

Near the 2th earth | 1 6/7 |

Near the 1st earth | 1 |

In Madhyaloka | 1 |

At the end of Saudharma Isana heaven | 2 5/7 |

At the end of Sånatkumåra | 4 3/7 |

Mahendra heaven | |

At the end of Brahma Brahmottara heaven | 5 |

At the end of Låntava kapista heaven | 4 3/7 |

At the end of Sukra Mahasukra heaven | 3 6/7 |

At the end of Satåra Sahasrara heaven | 3 2/7 |

At the end of Ånata Pranata heaven | 2 5/7 |

At the end of Årana acuta heaven | 2 1/7 |

In 9 Graiveyka and 9 Anudisa 5 Anuttara and till Siddhasilå | 1 |

The front part of dhvaja (flag) as related to respective last Indravimåna, marks the end of a particular heaven. The end of the loka is the end of the earth. There are 8 earths in Jaina Siddhånta viz. 7 earths and 7 hells and one earth of moksa (liberation).

There are three stable belts of wind (unlike the unstable wind in general) in outward order round the lokåkå¹a , viz. Ghanodadhivåtavalaya , Ghanavåtavalya and Tanuvåtavalaya having the colour of cow-urine, the colour of cubical coral and multi-colours respectively.

There exists Alokåkå¹a ahead of Tanuvåtavalaya The thickness of these våtavalayas are 20000 yojanas each from the base of 8 earths upto the height of 1 rajju. In the 7th hell adjacent to the earth their heights are 7, 5 and 4 yojanas, respectively and decrease to 5, 4, and 3 yojanas in the region adjacent to Brahma heaven and again decrease to 5, 4 and 3 yojanas at the end of Ýrdhvaloka, respectively.

At the top of loka the thicknesses of these våtavalayas are 2 ko¹as, 1 ko¹a and 1 ko¹a less by 425 dhanu respectively.

The breadth of loka is 7 rajjus at the base, 1 rajju at its middle portion, 5 rajjus in 5th heaven and 1 raju at the top. Thus, the total breadths add up to 14 (7 + 1 + 5 + 1) which when divided by 4 gives 3 1/2 which when multiplied by 7, the south-northern thickness of loka, gives 24 as the product. Now when 24 is multiplied by 14 rajjus, the product is 343 ghana rajjus as the volume of loka.