In Devlok (heavenly realm), “jaghanya āyuṣya-sthiti” and “utkṛiṣṭa āyuṣya-sthiti” are technical Jain terms about lifespan:

1. Meaning of the terms

- Jaghanya āyuṣya-sthiti = the minimum possible duration of life-span karma for a being in that particular devlok. In simple words: the shortest time a deva can live in that heaven.

- Utkṛiṣṭa āyuṣya-sthiti = the maximum possible duration of life-span karma for that devlok. In simple words: the longest time a deva can live in that heaven.

These are fixed, definite ranges decided by āyuṣya‑karma for each gati and for each specific devlok, according to Jain śāstra. They do not change by wish; they are determined by the karmic bondage at the time of birth in that dev state.

1. In Devlok specifically

- There are 4 main types of devas: Bhavanpati, Vyantar, Jyotiṣī, and Vaimānika (kalpopanna + kalpātīta). - For each group, and even for each individual devlok (like Saudharma, Īśān, Sanatkumār, etc.), scriptures give: - a minimum life‑span (jaghanya) and - a maximum life‑span (utkṛiṣṭa) generally expressed in years, palyopam, or sāgaropam.

Example (only to show how it works, not the full chart): - For some Vyantar devas (e.g. Vanavyantar), texts state: - jaghanya āyuṣya-sthiti ≈ 10,000 years - utkṛiṣṭa āyuṣya-sthiti ≈ 1 palyopam That means such devas must live at least that much, and cannot exceed the given maximum.

- For higher Vaimānika devs (Saudharma, Īśān, Sanatkumār… up to Anuttar), the units become very large (palyopam and sāgaropam), and each higher devlok generally has greater minimum and maximum ayuṣya than the one below it.

1. Why this is important in Jain Dharma

- These ranges show that heavenly pleasure is still within saṃsār. Even if a dev has a very long utkṛiṣṭa āyuṣya, that life must end when that āyuṣya‑karma finishes. - So, Devlok is not moksha; it is only a high, but temporary, state earned by punya‑karma.

If you wanted a full detailed table devlok‑wise (Saudharma to Acyuta, Graiveyak, Anuttar, etc.), that comes from special cosmology/karma‑prakaraṇ texts and is usually studied with a chart in advanced Jain classes.