Gratitude - Between the Abyss and the Light is a poetic and philosophical journey of inner healing. There is a moment when life brings us to the edge, between fear and hope, loss and revelation, and there gratitude becomes a bridge. Born from silence and reflection, this book invites the reader into a gentle yet profound crossing: from resistance to surrender, from pain to meaning, from separation to oneness. Blending poetry, philosophy, and contemplation, Marco A. Costa writes as one who listens to the invisible until it begins to speak. Each page is an act of presence, a reminder that healing is not a destination but a way of seeing. It is not a manual; it is a path to be read slowly, felt deeply, and remembered quietly.