Self-restraint did not let any complaint reach the lips, nor did patience allow a sigh to be drawn; it remained as a lock upon the mouth and weighed down on the chest like a heavy stone.

Here, the poet captures the agonizing weight of suffering in absolute silence. Bound by restraint and patience, the lover is forbidden from uttering a complaint or even releasing a sigh for relief. That swallowed pain transforms into a padlock upon the mouth and settles on the chest like a crushing stone, showing how unspoken grief suffocates the heart from within.