Do Nothing Meditation.

https://deconstructingyourself.com/d...editation.html

The full instructions for the Do Nothing meditation technique are: sit down and do nothing.

Here's the thing. This is not an easy or effortless practice without a focused and concentrated mind. At least for me it wasn't until I had a substantial amount of time practicing mindfulness meditation. Any focused technique should do the trick of focusing and concentrating mind. Mindfulness, mantra, candle gazing, etc...