Solution:In Jain cosmology, time is eternal and moves in cycles divided into two halves:
- Avasarpini (descending half-cycle - decline of happiness), and
- Utsarpini (ascending half-cycle - rise of happiness).
Each half is further divided into six aras (spokes/ epochs). In the Utsarpini (progressive half), happiness steadily increases:
1. Dusama-Dusama.→ The era of complete sorrow, the lowest point.
2. Dusama → The era of sorrow.
3. Dusama-Susama → An era of great sorrow with very little happiness.
4. Susama-Dusama → An era of significant happiness, but with some sorrow mixed in.
5. Susama → An era of happiness.
6. Susama-Susama → The era of complete happiness, the highest point.