Answer

In Jain Dharma, a deity cannot become a human without rebirth.

A deva must complete the lifespan of the heavenly existence, die from that state, and then the soul may be reborn as a human if the appropriate karma leads to human birth.

Explanation

According to Jain philosophy, the soul moves through different gatis, or states of existence:

• Deva gati — heavenly beings
• Manushya gati — human beings
• Tiryanch gati — animals, plants, and other non-human life forms
• Naraka gati — hellish beings

A soul does not simply transform from a deity into a human body while continuing the same life. The transition from one gati to another happens through death and rebirth, governed by karma.

Even heavenly beings are still bound by karma. Their divine pleasures and powers are temporary. When their heavenly lifespan ends, they must take another birth according to their remaining and newly bound karmas.

Spiritual Understanding

Jain Dharma teaches that deva birth is not liberation. It is still within saṃsāra, the cycle of birth and death. A deva may have great comfort, beauty, and powers, but cannot attain moksha merely by being a deity.

Human birth is considered especially valuable because it provides the best opportunity for right faith, right knowledge, right conduct, tapasya, and liberation.

Takeaway

A deity cannot become human without rebirth. In Jain Dharma, movement from deva gati to human birth happens only after the end of the deva life, through karmic rebirth.