But Donne is at his most remarkable when he speaks about how very hard it is to seek God at all. More than anyone else, he acknowledged the way that the human heart darts about like a rat. His body, he found, so readily present in desire for other humans, betrayed him when he sought the same intensity in prayer. Donne was a man so in control of his poetry that he could layer it with ten dozen references; he could write a twelve-line sonnet that would take you a week to read, but he was not in control of his mind: