In fact, everyone has an angel protecting himself forever.
其實每個人都有一個永遠守護著自己的天使
If this angel feels that your life is full of pain and you always feel excessively sad, She would turn into someone else beside you.  Maybe it's a friend of you, or your lover, or a net-friend you have never met,or a stranger you just met only once.
這個天使如果覺得你的生活太過痛苦，你的心情太過悲傷，那么她就化身成你身邊的某一個人，也許是你的朋友，也許是你的戀人，也許是你未曾見過的網友，也許是你僅僅見過一面的陌生人.
These persons quietly appear in your life, accompany you with a happy time and then he could leave silently. And thus your life is full of happy memories. Even the future path is covered with storm or snow, once reminiscing those happy stories he brought to you , you can still be brave.
這些人靜靜的出現在你的生命里，陪你度過一段快樂的時光，然后他再不動聲色的離開。于是你的人生就有了幸福的回憶，即使你以后的道路上布滿了風雪，一想起曾經他給你的幸福故事，你就可以依然勇敢。
For those who have left you without any word, actually they're angels returning to the heaven. For example, your lost friends ,the strangers who ever gave you help, those seperated but used to love you, those artists who used to sing good songs to you, the good writer,and etc.., they are all kind-hearted angels.
所以那些默默離開你的人，其實都是天使回歸了天國，比如那些離開的朋友，那些曾經給過你幫助的陌生人，那些曾經愛過但最后分開的人，曾經給你唱過很好聽的歌曲的藝人、寫過一本好書的作家，他們都是善良的天使。
Perhaps sometimes you would feel sad or lost because of their disappearance, and would seek them everywhere to find out where they're going, which nation they've arrived. But in the end, you'll be convinced that they stay in a certain nook of this world with a tranquil and gratified life. Finallly, all the feelings of loss or sadness will no longer exist since time has been the greatest therapist.
  也許你有段時間會對于他們的消失感到傷心或失落，會四處尋找想知道他們去了哪里，到了什么國度，可是到最后，你都會相信，他們在這個世界的某一個角落，安靜而滿足的生活著，于是曾經的那些失落和傷心都將不復存在。時間是最偉大的治愈師.