As a Spanish poet said, our lives are the rivers which go to end up the sea, which is the death.
I agree, the life is a river which always flows, Sometimes, slowly. Other times quickly. There are water falls and meanders but this river never stops.
Nothing happens twice, we have to live every moment. What happens will not repeat.
People come and go. As we do.
You must try to survive when water is wild and dangerous. You must enjoy the quiet moments in which you can have the illusion of being ethernal.
Close your eyes and listen to the beat of the time.