You still have not answered my question re: the end of the Sukkah Sicha, where chassidim can be soimech on the tzaar of the Rebbe.
I just looked through the Sicha, and didn’t find where the Sicha says that. Can you point which Syif? The only thing that I could find that sounds similar is a previous point, where the Rebbe says that the Rabbeim didn’t sleep in a Sukkah since they felt the holiness there. And since Chassidim generally tried imitating their Rebbe, the inability to do so would cause them (emotional) distress. So even according to that point, sleeping in a Sukkah would cause Chassidim some kind of distress, and that distress Paters them from sleeping in a Sukkah.
But that wasn’t the final answer. The final answer was that pain freeing you from sleeping in a Sukkah is the guilty feeling.