Written between 1578 and 1579 in Granada, Spain, after John's escape from prison, the Ascent is illustrated by a diagram of the process outlined in the text of the Soul's progress to the summit of the metaphorical Mount Carmel where God is encountered. The work is divided into three sections and is set out as a commentary on four poetic stanzas by John on the subject of the Dark Night. John shows how the Soul sets out to leave all worldly ties and appetites behind to achieve "nothing less than transformation in God".