The soft thorn in the heart is more painful than the sharp arrow that actually pierces the body. If you are injured by the sharp arrow, you only need to pull out the sharp arrow and wait for the wound to heal and scar. But the soft thorn in the heart cannot be seen, cannot be touched, cannot be pulled out, and will not heal. I don't know when you will prick it and hurt. It will never heal or be removed. Even if it is healed, it still hurts like hell when I think about it...
Purpose: Active life