《达摩流浪者》的主题是什么？

《达摩流浪者》系美国作家杰克·凯鲁亚克于1958年创作出版的一部重要作品，2008年由上海译文出版社出版发行。小说着力突出如何把理想主义的“空”落实到真正需要承担的当下生活中来这一主题。

同时《达摩流浪者》是凯鲁亚克最精彩的自传体小说。书中宣扬的自由上路、追求理想与爱的理念影响了六十年代整整一代的西方青年，并为六十年代追求独立、反叛和自由的思想打下了深厚的基础。

那段话的原文是

"Japhy," I said out loud, I don't know when we'll meet again or what'll happen in the future, but Desolation, Desolation, I owe so much to Desolation. Thank you for guiding me to the place I learned all. Now comes the sadness of coming back to cities and I've grown two months older and there's all that humanity of bars and burlesque shows and gritty love, all upsidedown in the void God bless them, but Japhy you and me forever know, O ever youthful, O ever weeping."

O ever youthful, O ever weeping.这句就是永远年轻，永远热泪盈眶。

O ever ?的意思就是forever ? 这是一种个性的写法。