Answer

In Jain Dharma, an abhavya jiva is not usually said to be caused by one single action or event. It is understood as a beginningless, intrinsic karmic condition of the soul, in which the soul never develops the true inclination for liberation (moksha).

Explanation

A simple way to understand it is:

• A bhavya jiva has the capacity to attain moksha.
• An abhavya jiva does not have that capacity.

According to Jain thought, this happens because the soul is bound by very deep and long-standing deluding karma and worldly attachment. Because of this, it never gains the inner taste for liberation.

So, it is not usually explained as:

• one sin,
• one birth,
• or one mistake.

Rather, it is seen as a special condition of the soul itself.

Spiritual Understanding

This teaching reminds us that spiritual progress in Jainism is precious. If a soul develops:

• right faith,
• detachment,
• and a sincere desire for moksha,

then it moves toward liberation.

That is why Jain practice emphasizes:

• samyak darshan,
• samyak jnana,
• samyak charitra,
• and reduction of attachment and aversion.

Takeaway

An abhavya jiva is understood in Jainism as a soul with no potential for moksha, due to a beginningless karmic अवस्था, not because of one specific cause.