The poetry and prose writings of the sixteenth-century Spanish friar John of the Cross are of interest to scholars of systematic theology, Christian spirituality, and Spanish poetry. This work provides the first extended English-language analysis of these writings since the 1950s. Bringing into attention an important Christian writer that has many things to say today both in the theological space, philological (to his poems, but also thorough his other writings), the philosophical or historical one, the work of Sam Hole that tries to deepen a key aspect of the work and work of Saint John of the Cross is not only an useful tool for the theologians that will try to understand better and to put into the context of different ages, the mystics, but also for the historians, other specialists from the sociological or humanistic area, and finally for each curious one.