Hi Nagi, Beatles nerd here and Strawberry Fields is my favourite Beatles song. As with Steve, when I heard the song growing up when it first came out, I knew nothing about the real Strawberry Fields and thought of it as a place where they grew (cultivated) strawberries. Likewise, regarding the 'hung about' lyric, I interperpreted it in the same way as Steve. I read the interview alluded to by Paul much later. The thing is that even though I know these 'facts' now, the images in my head when I hear the song are still of a field full of strawberries, a place where one need not get stressed out! The point is you are free to choose the translation that works for you. (They can't hang you for i!)
Regarding your other question, 'Let me take you etc' literally means 'allow me to take you..'.. In other words, 'I would like to take you etc' - it's an invitation for you to accompany John to Strawberry fields. Some people have speculated that John said 'Let me take you down...' as opposed to 'Let me take you up...' to reflect his state of mind. Personally I think 'down' just works better in a lyrical context but again you are free to choose.
As you yourself said 'Can this discussion ever be ended'! :-)
