I've tried it. I've practice the breathing technique. I've practiced closing my eyes and imagining a blue light coursing into the top of my head, running down the length of my body. I've practiced repeating a mantra using a Japa Mala, or Rosary beads. I needed to quiet my mind, not an easy task.
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I stopped doing it, stopped trying to still my mind. But I have to start again, for my own sanity.
How do you quiet your mind?