If you found yourself trapped in a flood, and forced to leave your home by wading through deep water, what could you take with you? Pretty much nothing. All of your goods are likely to be ruined by water anyway. But if you had a pet, you couldn't leave it behind. So this boy found a way to save his, even though doing so put him in incredible danger.
The poor dog is soaked already - it must have spent some time in the water before the boy saved it with this bowl - but look at the level the boy is willing to go to in order to keep the dog safe. He is literally up to and above his neck in the flood water, so much so that it's risen to his mouth and he's having to spit it out as he moves along. He's almost willing to drown just to keep his canine friend alive. That's love.