It was realized that the knot would unravel in a day or two. They forgot their heart and instead tied a knot in a kerchief.

This couplet speaks about the poignant realization that an important bond or connection, like a knot, is about to untie and break. The poet suggests that this happens because we often forget what truly matters – our heart and genuine emotions. Instead of cherishing these deep feelings, we might get caught up in superficial reminders, like tying a knot in a handkerchief for a trivial task, and in doing so, we unintentionally overlook the vital emotional threads that hold relationships together. It's a gentle reminder not to let go of heartfelt connections.