Heaven's door is an original attempt to take to the extreme the Renaissance pretensions of reconciliation between philosophy and Kabbalah. Abraham Cohen de Herrera provides in this capital work a complete, organic and modern vision of the Kabbalah, systematizing its elements and elucidating its mysteries in the light of neoplatonic philosophy, in the version elaborated by the Florentine school, especially by Marsilio Ficino and Francesco Patrizio. The ins and outs of this syncretism make Cohen de Herrera a key thinker whose speculation contributed decisively to the gestation of Baruj Spinoza's system.

The texts of Cohen de Herrera are the only ones who, originally written in Spanish, deal with cabalistic matter, the peculiarities with which the choice of this language permenated the expression of the kabbalah's own system of hierarchies. Thus, the nature of the infinite God, and the way it emanates or produces beings through immediate infinite modes and mediates (philosophical parallel of the sefirot and partzufim in the lurinic Kabbalah), were undoubtedly reinterpreted by the cabalist from the readings and influences that procured his belonging to Hispanic culture.

This first annotated and comparative edition of the manuscript preserved in The Hague highlights the unique importance of this text, reflecting the spiritual geography of the late 16th and early 17th centuries.