Yekke 2 asks: “Explain, in your own words, what you feel the function of bein hazmanim is?….”
For those who don’t take the admonition of “V’hagesa bo yomam valaylah” literally, it means the reality that there are yom tovim, which require preparation time everyone from the Rosh Yeshiva, the many rabbonim who may be magid shiiur down to the workers in the chadar ochel to the janitors who sweep the floors in the beis medrash. These same people have families and require time off for rest and vacation The reality is that even the most dedicated masmid needs a break. You cannot shteig 24x7x365.