We Americans are not great with stillness. Most of us can do some physical stillness (especially while we sleep or watch television!) but when it comes to mental stillness, it’s a whole different ballgame.
Elizabeth Gilbert’s book, "Eat, Pray, Love," has more than one hilarious/tragic passage about the mental warfare she engaged in — with herself! — while trying to simply sit still in meditation while visiting an ashram in India.
As an avid yoga practitioner, I’m always amazed at how few people can lie still on their mats for the closing "savasana," or "corpse pose." It should be the easiest posture to do — you just lie, super-still, on your mat, arms at your side. End of instructions.