In "Dialogues on the Supersensual Life", Boehme explains the key ideas of his doctrine.
Boehme thinks the Soul is a Being which has a will or desire, and is aided by a mirror of understanding or imagination. Will or Desire is of the very essence of the Soul, inseparable from its existence. He says: 'Where Desire is, there is also Essence or Being.' The Soul is subject to the diverse attractions of the Centre of Divine Life and Light, and of the Spirit of the World. Enlightened by its understanding it has the free power to turn its will towards, and unite itself to, this or that. Choice should be done well, thy choice is brief and yet endless.