The video, touch until makes me cried...

Just now, when 8 o'clock, my sis was went to bath...
So I just use her account (Facebook) to see is it got any video...
I saw 1 video, title is: 'A letter from Mom and Dad...' When I saw this title, I feel this video will be very touch, so I just click it...
When I was waiting for the video load, I think a lot...
What kind of video is it?
Happy...
Sad...
Kindful...
Touch...
...
And when I see the video, that's my favourite song -- Kiss The Rain...
When I still watching, my sis heard the song, she came in and see what I am actually doing...
She was shocked... Cause I cried... She asked me...
'Is it very touch?' I use my tears to answer my sis: Yes... It's really very touch...
The video is actually said about... The Mom wrote for ask her daughter...
...My dear, I'm sorry that I can't forever take care of you, because I'm getting old... When I can't see or I can't do anything, Please don't yell on me... Cause an old person, doesn't like people yell on theirselves... Do you still remember when you was still little? That you wants a balloon, that you had a teddy bear, that you learn how to walk... Really, don't worry that anytime that we death... Please forgive Mom and Dad that we can't take care of you, and because of that, you must take care yourself... Mom and Dad... Love you forever... From gave you much of love -- Mom and Dad...
It's really very touch... I really cried like raining... I hope I can be with my family forever... Before, I really don't know how does they feel that when I grow up... When I can work by self... When I can take care myself... When they getting old...
Now I knew... They will be comfort, and also will be hate to part with it... Thanks them a lot...