Besides the fact that the story is fun to read (I read almost lai dune deals) despite some awkwardness sometimes we do not know if they are from the original text or translation (eg treatment and dialogues of the little story of love that motivates the narrator), the interest of the Day of the Triffids is to bring out the uncertainty in which the survivors find themselves: should expect "American" that will inevitably soon save us, or are we alone face the world, and we must take our destiny in hand and short-term aim quune survival?
Faced with this uncertainty, the need is the chance (as defined in new freedom, compared to a previous world become so specialized that each becomes dependent on all) for the man to make choices becomes clearer, "Heaven only knows what problems they would succeed and there would probably much - but would be new. I was born again as my own master, and no longer as the teeth of a gear. "