I have an image that I use to convey the sense of emptying my mind of thoughts. From a vantage-point high above, I picture myself sitting in meditation on the floor of the main hall of a huge deserted main-line railway station. I am completely alone, my eyes shut, the empty floor spreading out in all directions, and there is a muffled, almost underwater silence in this entire vast space.
Trains, like trains of thought, are at every moment silently gliding out from dozens of platforms to all possible destinations, and these trains represent all the thoughts, memories, feelings, desires, fears, ruminations, reflections, speculations, words, tunes and images that bombard me when I first sit down to meditate. But I, settling down into a deep and peaceful meditative state, stay seated in the terminus, do not feel tempted to board any of these trains, and will not pursue the connections that they inevitably go on to make, thought endlessly leading on to thought. I avoid these trains of thought by staying in the pure awareness of this hall, happy to remain in solitary and silent comtemplation of my own awareness, itself an immense cavernous void like the station, where I am rapt in the infinite stillness of eternity.
—Mark Forstater, from Yoga Masters