Posts by author Marc Wittmann da https://www.mind-foundation.org/blog/da/author/author/marc-wittmann/blog.author.xml Thu, 05 Mar 2026 11:58:13 +0100 https://www.mind-foundation.org/blog/da/ganzfeld-effectFri, 21 May 2021 02:42:00 +0200Marc Wittmannhttps://www.mind-foundation.org/blog/da/ganzfeld-effectLearn about the Ganzfield method of sensory exposure, how colors can alter states of consciousness, and what applications this may have.