An hour with the Body Earth Power Group was enough for me. No sooner had Carin Brook entered than everyone became silent. Much as I tried to keep my mind open - and despite the fact that I have been known to do a bit of tree-hugging myself - I couldn't help thinking that this was going to be a waste of time. Brook, even though she is tiny, had a charismatic presence. We started stretching in order to 'feel the Earth's rhythm', but it didn't last long. I'd hardly lifted my hands up when she told us all to sit down, close our eyes and 're-visualise ourselves from above'. Hard though I tried, I just couldn't imagine what the top of my head looked like, and in spite of her promptings to 'relax', the hard floor was getting very uncomfortable. Thankfully, four o'clock came, by which time I was desperate for a nice soft chair and a cup of tea.