Sounds biblical, but it's not. (Seen at Rana's, among other places.)
1. Go into your archive.
2. Find your 23rd post (or closest to).
3. Find the fifth sentence (or closest to).
4. Post the text of the sentence in your blog along with these instructions.
Not Mine, From Sappho Breathing:
From July 18, 2003: "Then Phaon met me at the library with Thai food and a bottle of wine, and we lay on the lawn of the Arts Quad listening to a swing band and watching the children dance."
8/04/05: "Relaxing, my hands fall naturally into a muhdra and a dragonfly lights on the thumb of my left hand." From Silk Creek Portal.