This animation is avaible on a lot of different youtube channel so i will share the older one here, i'm sure you seen this animation at least once in your life some where but not this way.

Pretty "classic" art style on this animation, easy to follow story a man absord sadness from there people and then meet his dog and both the dog and the guy get better.

Morality ? People who help you feel better aren't necessarily the one being the happiest in there lives. Like this famous Norwich City Football Club prevention ad.

You'll understand better what i mean by looking at the animation by yourself.
Just don't forget everyone might need help whatever how much they smile.
A theory of mine is that in the first animation the guy came back and killed him and his dog as a way to get better but it wouldn't match the vibe and morality of the video.

Do you enjoy these animation/prevention/advert analyse ?
I hope so, because i really like making theme and sharing my though.