Answer

In Jain Dharma, sex is not called “sin” in a simplistic way. It is understood as an activity connected with kāma — sensual desire — which increases attachment, passion, and bondage of karma.

For monks and nuns, complete celibacy is required. For householders, Jain Dharma teaches restraint, faithfulness, and control of desires.

Explanation

Jainism teaches that the soul becomes bound by karma because of passions such as:

• Attachment
• Desire
• Possessiveness
• Lust
• Carelessness

Sexual desire strongly pulls the mind toward the body and worldly pleasure. This can increase attachment and distract the soul from self-control, purity, and liberation.

That is why Jain Dharma places great importance on brahmacharya.

• For ascetics: brahmacharya means complete celibacy.
• For householders: it means sexual restraint, morality, and loyalty within marriage.

Spiritual Understanding

The goal of Jain Dharma is to free the soul from karma and move toward moksha. Any activity that strengthens desire and attachment keeps the soul tied to worldly existence.

So Jainism does not teach hatred toward the body, but it teaches mastery over the senses.

Takeaway

Sex is spiritually harmful when it is driven by lust, attachment, indulgence, or lack of self-control. Jain Dharma encourages purity, restraint, and gradual control over desires for the upliftment of the soul.