Swiss-based author Markus D. Kraeuchi has published The Tree of Souls, a 302-page exploration of how different spiritual traditions understand the soul’s origin, journey and relationship to the deepest sense of self. Released in English on October 9, 2026, the book brings together ideas from several traditions without presenting them as a single unified doctrine.
Kraeuchi approaches the subject from an unusual professional background. He has spent more than 35 years working in technology leadership while developing a sustained personal interest in mythology, symbolism and spiritual practice. His new publication gives that cross-disciplinary curiosity a specific focus: what changes when the soul is understood not as a fixed object but as a traveller through experience?
An inverted tree as the book’s central image
The title refers to a tree whose roots extend upward rather than into the ground. In the book’s symbolic framework, the image connects an enduring source with the changing experiences of embodied life. Its branches stand for the different paths and relationships through which a person develops, while the roots suggest a deeper origin.
That metaphor provides a way to examine themes that often appear separately in spiritual literature, including incarnation, memory, destiny, dreams, death and return. Kraeuchi considers how these subjects have been expressed across cultures and what readers might gain from placing their different interpretations side by side.
Multiple traditions without a single conclusion
The book draws on Vedanta, Kabbalah, Sufism, Daoism, Egyptian and Greek thought, Hermeticism and Spiritualism. Rather than arguing that these systems teach precisely the same thing, it explores points of contact and differences in their accounts of human identity and spiritual continuity.
A recurring distinction is made between the personal soul, which is described as undergoing experience and change, and a deeper Self understood within the book’s philosophical framework as beyond birth and death. These are spiritual and metaphysical perspectives, not empirical findings about consciousness or life after death. The book invites reflection on them without asking readers to treat any particular interpretation as established fact.
From technology leadership to symbolic inquiry
Kraeuchi’s interests extend beyond comparative philosophy. His publisher describes experience with astrology, Tarot, palm reading, hypnosis, Reiki and sound-based practices. Those subjects inform his broader exploration of symbols, perception and the ways people interpret experiences that are difficult to describe in ordinary language.
For readers interested in spiritual development, The Tree of Souls offers a book-length conversation between traditions rather than a step-by-step practice manual. Its contribution lies in the questions it brings together: how different cultures imagine the soul, where personal identity begins and ends, and what it might mean to approach those questions without demanding certainty.
The publication adds a new English-language title to the growing body of independently published work that connects comparative spirituality with contemporary personal inquiry.
Source: Books on Demand
Web: https://buchshop.bod.ch/the-tree-of-souls-markus-d-kraeuchi-9783696751418
