In a person's lifetime, there will always be moments of loneliness. No one can truly understand the loneliness inside one's heart. The background of one's life may not be what others desire; everyone has their own happiness.
Life is like this, causing you to lose what you cherish most, again and again, only to finally realize how much you care about it all. When someone had it, nobody thought about what it would lead to. Why is everyone always so selfish, disregarding others' comfort for the sake of their desires?
In this lifetime, people encounter many grand things, but ultimately, all they gain is heartache. Some sacrifice everything, over and over, for themselves, yet no one truly knows how they've spent their life.