Riddonkulous

I carry hearts full of stories, treasures, and old dreams, Through golden morning sunlight and moonlit midnight streams. I have felt the storm's cold fury and the calm seas gentle breath, Yet I keep moving forward, dancing between life and depth. I may be small enough for one, or mighty enough for many, I can seek distant shores or simply drift where skies are starry. I never ask the ocean where it ends or where it began, I simply trust the water beneath me and follow where I can. I belong to neither land nor sky, though both I can see, For the sea becomes my pathway, and the horizon calls to me. What am I, that floats but never truly rests, Carrying travelers onward upon the oceans vast?