in: Julian Strube, Marleen Thaler & Dominic Zöhrer (eds.), Subtle Energies in Therapy, Spirituality, Arts & Politics: 1800-Present, Brill: Leiden / Boston 2026, 187-206.

This chapter is an attempt to analyze what is at stake, at a fundamental level, in the common perception of "subtle energies" by participants in ayahuasca healing. This is my most serious attempt yet to explain the implications of a radically agnostic and radically empirical approach to experiental knowledge obtained in altered states of consciousness. As such, it is also a contribution to the philosophy of science/scholarship.