Most often, the reason something is "on your mind" is that you want it to be different than it currently is, and yet: you haven't clarified exactly what the intended outcomes is; you haven't decided what the very next physical action step is; and/or you haven't put reminders of the outcome and the action required in a system you trust. That's why it's on your mind.
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Chapter 1David Allen
Here's how I define "stuff": anything you have allowed into your psychological or physical world that doesn't belong where it is, but for which you haven't yet determined the desired outcome and the next action step.
David Allen
"Look, Nelson. Maybe I haven't done everything right in my life. I know I haven't. But I haven't committed the greatest sin. I haven't laid down and died."
John Updike
A real decision is measured by the fact that you've taken a new action. If there's no action, you haven't truly decided.
Anthony Robbins
"I haven't done enough. I don't have solar panels on my house yet. I haven't sorted out the heating, my car's not a Prius, I f---ing fly all the time for my job and I hate it but at the moment I haven't really got a choice, you know, and all these things. The job I'm in is a job that wastes energy left, right and centre. It's madness." source
Thom Yorke
Allen, David
Allen, Elizabeth Chase
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