There is no effort that we can make to still ourselves. True stillness comes naturally from moments of solitude where we allow our minds to settle. Just as water seeks its own level, the mind will gravitate toward the holy. Muddy water will become clear if allowed to stand undisturbed, and so too will the mind become clear if it is allowed to be still.
I didn't know what courage was until I met Harriet Tubman. And I'm telling you I studied hard something fierce 'cause I wanted to know the source of that courage. I asked her once and she said, "It ain't me. It couldn't be. I've got a guardian angel, that's what I have. They come when you think of others more'n yourself. They come like bees to honey."