If a כלה has a blemish ב"ש maintain that you either not praise her at all, or find something (specific) about her that is praiseworthy. ב"ה maintain that in all instances we lavish (equal) praise to all כלות; in order that there be no negative inferences.
The (custom) [myrtle] was an aid for the elder - שיטתיה לסבא
The term שיטתיה refers to the שטה tree which is a type of ארז similar to the הדס tree. They knew that the pillar of fire that separated רשבר"י was on account of his dancing with הדסים, because the fire was shaped as a הדס branch.
The teaching of תורה is disrupted in order to take out the dead for burial - מבטלין תלמוד תורה להוצאת המת
A מת מצוה is to be buried in the place where he is found. If one moves him, every step taken away from his original resting place is considered שפיכת דם נקי. The ר"י מקורבי"ל maintains that for laxity in שימוש ת"ח one is מחוייב מיתה.