Little Book of Clarification
Jan van Ruusbroec wrote this short treatise near the end of his life, in response to readers who could not tell whether he was orthodox. Ruusbroec, an Augustinian canon at Groenendaal in the forest outside Brussels, had written *The Spiritual Espousals* and other works in Dutch describing a union with God so intimate that the soul seemed to lose itself entirely in the divine. Carthusian monks at Herne, who copied and circulated his writings and admired them, were unsettled by these passages. They asked him to explain himself. The *Boecsken der verclaringhe* is his answer: a compact, deliberate restatement of what he meant and, just as importantly, what he did not mean.
Ruusbroec's central move is to distinguish the ways a creature can be one with God without collapsing the distinction between them. He describes a union with God that belongs to our nature as creatures held in being by God; a union without intermediary, given by grace, in which love joins the soul directly to God; and a union without difference, in which the soul is lost in the divine superessence beyond all activity and knowing. The third is the language that alarmed his readers, and Ruusbroec does not retract it. He insists instead that even at this height the creature remains a creature: we are one with God in love but remain eternally other in being. From this he launches a sharp attack on those who claim otherwise — the false contemplatives who rest in bare emptiness, treat their own passivity as divinity, and abandon works of charity, the sacraments, and the practice of virtue as things beneath them. Against them he sets his image of the common life: the person who goes out in active love and returns inward to rest in God, breathing in and out, contemplative and practical at once, and never having to choose.
The treatise has mattered since as the clearest short statement of a problem that recurs whenever mystical language runs ahead of doctrine — how to speak truthfully about losing yourself in God without saying you have become God. Ruusbroec's answer shaped Geert Grote and the Devotio Moderna, reached the Spanish and French schools through Surius's Latin translation, and drew twentieth-century readers back to him as a theologian rather than an enthusiast.
Who should read this: anyone drawn to apophatic or unitive mysticism who wants a native check on its excesses, and readers of *The Spiritual Espousals* who found its final book bewildering. Not a starting point for someone new to contemplative writing — it presumes the questions it answers, and its distinctions will read as hairsplitting to anyone who has not felt their weight.