~をこめて (with, infused with)

The set frame [emotion noun]+をこめて, 'putting X into, infused with X, with X.' Used to describe the emotional content of an action. 愛をこめて ('with love'), 心をこめて ('wholeheartedly'), 憎しみをこめて ('with hatred'). Built from 込める ('put into, fill with').