In case anyone was wondering where the title of my blog comes from, it's the title (and chorus) of a U2 song from the album How to Dismantle an Atomic Bomb (not Linkin Park's song of the same title).
The Edge answered the question about the lyrics in an interview:
"I think lyrically it's very personal to Bono. The idea for the song lyrically, the one step closer to knowing line, came out of a conversation he was having with Noel Gallagher (of Oasis) about his father's illness, which at that point he'd found out was terminal. They were talking about how weird it was to know that your father's dying, and Bono was saying, I'm not sure he has a faith, whether he knows where he's going, and Noel says "Well, he's one step closer to knowing, isn't he!” and Bono went "Yeah”. It must have just registered, ok, that's a song, and two years later it came back when we were working on that tune and it came together really fast." http://www.u2achtung.com
I think the song is a great metaphor for our life's journeys and experiences. Read the full lyrics here: http://www.atu2.com/lyrics/onestepcloser