Does your train of thought sometimes leave you behind?

ODG yes. I have the misfortune of having a brain that is always thinking about something. Sometimes it is thinking about something I want to think about; most of the times it is not. This is why we have meditation, but it doesn't change the fact that when I start working on something or thinking about something, by the time I'm halfway through, the "thing" is now something completely different, leaving the original "thing" out in the lurch.

All.
The.
Time.