Jewish theologian Abraham Joshua Heschel wrote: "The worship of reason is arrogance and betrays a lack of intelligence. The rejection of reason is cowardice and betrays a lack of faith." In this collection of homilies, Pedro A. Sandín-Fremaint treads the movable, often zig-zagging line between reason and faith, between faith and doubt, concluding that, before the inscrutable mystery of the holy, there is virtue in uncertainty. He writes: "I have learned to value uncertainty and unknowing as holy ground on which I can only kneel and take-off my shoes. To quote the great poet Mary Oliver, I have found this to be the ground where there is never proof, 'but neither is there any way toward disbelief.'"