The first excercise

["sineadoconnorfan" <sineadoconnorfan@...>]

But if anyone can give me a specific clarification of my problem 
with the first excercise I would appreciate it. My problem is that 
I don't see how we can have a train of thought without being 
actively involved in imagining it, so then I don't understand how we 
can be detached from a train of thought when a train of thought 
requires active participation in imagining it. Thanks for your help.

Ardeshir