I don't know why but in my head he emphasized the alone part.
'Alone' has a fluid definition. I always took it to be that one's thoughts about the vast opportunity and complexity of the bountiful sea can be appreciated 10 billion different ways by a roughly equivalent number of people and therefore we have no choice but to be alone with each one of our mental oceans.that line is so funny. i feel dense because i never took it that way, i was just like, "wow i bet it is nice!" *continues standing there*