[fnord]

You may be right. Certainly most of the songwriters of that era (or this) would want it to mean what you see in it. I know nothing of Alvin Lee (writer?) either, but when I first heard it as a kid when it came out, it struck a chord in me. Maybe I misinterpreted and am giving him way too much credit, lol.

[Dakmar]

Alvin Lee did write it, but I'm not having any luck finding any more than superficial info about him. It seems Ten Years After covered mostly the same blues standards as Yardbirds and early Stones, FWIW.