Answer

No. In Jain understanding, one-sensed beings do not laugh in the ordinary sense, and neither do 2-, 3-, or 4-sensed beings.

Explanation

Laughter is connected with the activity of the mind and expression through the body or speech. But:

• 1-sensed beings have only the sense of touch.
• 2-, 3-, and 4-sensed beings have more senses, but still do not have a developed mind and speech like higher beings.

So they do not laugh in the way humans or higher animals do.

Karmic Bondage

• They do not bind the specific hāsya mohaniya karma through laughter, because they do not actually laugh.
• But they do bind other karmas simply by living in embodied existence, due to their activities and natural states.
• Karma bondage is not only through laughter; it also happens through many kinds of bodily, mental, and emotional activity. For these lower beings, the bondage is very limited and coarse.

Spiritual Understanding

In Jain Dharma, the more developed a being’s faculties are, the more scope there is for conscious activity and therefore karma bondage. One-sensed and 2–4 sensed beings have very limited consciousness, so their bondage is also more limited and not through such expressions as laughter.

Takeaway

• 1-sensed beings: no laughter, no karma bond through laughter.
• 2–4 sensed beings: also no true laughter, so no karma bond through laughter.
• They still bind karma in other ways according to their level of existence.