Hmmm. I hope I'm doing more than that!
Yes, I was present on some of the brainstorming of ideas for Purple Dancer, but the lyrics were from Jenny Boyd, Mick's wife at the time.
As a whole, we were hard pressed for lyrics with much of a meaning but 'la-la-la'. A major frustration for me. I had so much to say, but didn't know how to say it, and ... well, history.
I had nothing to do with 'Dragonfly', performance or lyrically. Words by W. H. Auden, I believe? Maybe not. Some British poet, anyway.
Just FYI!
Oops, someone beat me to the punch! W. H. Davies. That's it!