Thanks for the great tip. I’ve used your technique to varying success level. Sometimes, I have thousands of boxes to close and lock. And boy, you know then you’ll be in for a long meditation session.
That’s why I implemented auto-locking box system. Instead of old wooden box with a key chain lock, I use an electronic safe called Black Diamond. Once my thoughts are locked in there, those babies area locked. Sometimes, my thoughts were locked in so securely, I thought I use losing my memories. Scary!
But this method has been really great in decluttering my thoughts and helping me focus. It’s really hard to focus when your brain is full of thoughts.