How do mystics from the major religions or modern masters of our time describe the possible spiritual development of humanity? What worldview emerges from their descriptions, and what spiritual practices do they recommend? Could academic psychology or even modern physics potentially facilitate our access to mysticism? This book contains forty chapters on such topics. These chapters serve as mosaic pieces, allowing each reader to assemble the answers that resonate with them. Initially, the book presents the teachings of significant mystics from various world religions, such as Buddha and Lao-Tzu, John of the Cross and Ibn Arabi, Patanjali and Abulafia. Additionally, it explains the key meditation methods from different world religions, including Christian contemplation.