Answer

In Jain Dharma, cremation is generally practiced after death because the soul has already left the body. The body is no longer the living person; it is only a lifeless physical form made of matter.

At the same time, your concern is very valid from the Jain view: fire, earth, air, water, plants, and tiny organisms all involve living beings. Jainism recognizes that some violence may happen in worldly life, even in death rituals. Therefore, the aim is to perform the final rites with minimum attachment, minimum harm, and a spirit of detachment and prayer.

Explanation

According to Jain philosophy:

• The jīva — soul — is separate from the body.
• At death, the soul leaves the body and takes its next birth according to its karma.
• The remaining body is ajīva — non-soul matter.
• Keeping the body for a long time can cause decay, smell, disease, and disturbance to many living beings.

Cremation is understood as a practical way to dispose of the body while maintaining detachment. It also reminds the family that the body is temporary and that the true focus should be on the soul’s journey, not on attachment to the physical form.

You are also correct that when a body is burned, very small living beings may be harmed. Jain Dharma does not deny this. Jain ethics teaches that householders cannot avoid all harm completely. But they must avoid intentional violence, reduce unnecessary harm, and act with awareness.

Spiritual Understanding

The purpose of Jain death rituals is not celebration of the body, but spiritual reflection:

• Remembering the impermanence of the body
• Reducing attachment and grief
• Praying for peace and spiritual progress
• Encouraging the living to practice samyaktva, ahiṃsā, and detachment

From the Jain perspective, the most important thing is not the physical burning itself, but the inner attitude:

• No possessiveness toward the body
• No unnecessary display or violence
• No rituals based on false belief
• Calm remembrance of the soul’s independent nature

Takeaway

Jains cremate the body because the soul has already departed, and the body is only lifeless matter. Still, Jain Dharma acknowledges that even cremation may involve harm to tiny beings. Therefore, the ideal is to perform the final rites simply, without attachment, and with the least possible harm, while remembering the eternal nature of the soul and the importance of ahiṃsā.