וְהַאֲבַדְתִּ֣י מֵהֶ֗ם ק֤וֹל שָׂשׂוֹן֙ וְק֣וֹל שִׂמְחָ֔ה ק֥וֹל חָתָ֖ן וְק֣וֹל כַּלָּ֑ה ק֥וֹל רֵחַ֖יִם וְא֥וֹר נֵֽר׃
Rashi on Jeremiah
the sound of a mill That is an indication of a circumcision feast, since they would grind and crush ingredients for healing the wound.
Rashi on Jeremiah
the light of a candle An indication of a feast. So we learned in Sanhedrin (32b).