In Jain cosmology, the universe (Loka) is divided vertically into three main regions: Urdhva Loka (upper world – heavens), Madhya Loka (middle world – where humans dwell), and Adho Loka (lower world – hells). The 14 Rajlok (or Ratnas, or realms/regions of existence) refer to these fourteen regions stacked vertically in the cosmological structure.

Here are the names of the 14 Rajlok (worlds) as per Jain tradition:

Urdhva Loka (Heavens):

1. Deva-Loka 1: Saudharma
2. Deva-Loka 2: Ishana
3. Deva-Loka 3: Sanatkumara
4. Deva-Loka 4: Mahendra
5. Deva-Loka 5: Brahma
6. Deva-Loka 6: Lantava
7. Deva-Loka 7: Kapishta
8. Deva-Loka 8: Shukra
9. Deva-Loka 9: Mahashukra
10. Deva-Loka 10: Satara
11. Deva-Loka 11: Sahasrara

Madhya Loka (Middle World):

1. Madhya Loka (where humans, animals, and plants reside)

Adho Loka (Hells):

1. Naraka 1: Ratna Prabha
2. Naraka 2: Sharkara Prabha

(Naraka continues down to a total of 7 hells, but for 14 Rajlok, the division includes upper and lower worlds.)

Summary Table:

| # | Realm Name | Description | |---|-----------------------|--------------------------| | 1 | Saudharma | Heaven | | 2 | Ishana | Heaven | | 3 | Sanatkumara | Heaven | | 4 | Mahendra | Heaven | | 5 | Brahma | Heaven | | 6 | Lantava | Heaven | | 7 | Kapishta | Heaven | | 8 | Shukra | Heaven | | 9 | Mahashukra | Heaven | |10 | Satara | Heaven | |11 | Sahasrara | Heaven | |12 | Madhya Loka | Human World | |13 | Ratna Prabha | First Hell | |14 | Sharkara Prabha | Second Hell |

(Note: Some texts may list the 14 Rajlok as 7 heavens, the human world, and 7 hells. The above is a general representation; different sects or texts may provide slightly different names or details.)

References:

• Jain Agamas (Scriptures)
• "Jainism: The World of Conquerors" by Natubhai Shah
• "Jain Cosmology" by Colette Caillat and Ravi Kumar