We often inadvertently think of someone in our past. It's not that we can't forget, but that we can't let go. Those worries that you don't want to mention to anyone anymore are growing secretly in the dark corners. When you don't understand love, you always meet someone you shouldn't give up. After you understand love, you always cause unintentional harm. Only when you meet someone can you truly understand the meaning of love; only when you miss someone can you truly understand the feeling of heartache.