Because it's bad enough not getting what you want, but it's even worse to have an idea of what it is you want, and find out, at the end of the journey, that it isn't, in fact, what you wanted all along.
望むものが得られないのも不幸なことですが 自分が望んでいると思ったことが 旅の終わりに来て 本当は違うと気づくのは もっと不幸です