In Jain Dharma, inner kaṣāya means the inner passions or defilements that disturb the soul’s natural purity.

The main four kaṣāyas are:

1. Krodh — anger
2. Mān — pride/ego
3. Māyā — deceit/crookedness
4. Lobh — greed/attachment

These are called inner because they arise within the mind and consciousness, not only through बाहरी actions. They bind karma to the soul and obstruct:

• right faith
• right knowledge
• right conduct
• peace of the soul

In Jain practice, reducing and destroying these kaṣāyas is essential for samyak charitra and ultimately moksha.

In simple words: Inner kaṣāya = the hidden passions inside us that create bondage and suffering.

If you want, I can also explain the 12 kaṣāyas or the 4 main kaṣāyas with subtypes in Jain terminology.