Commonly called Golden Teacher Ymir (YMIR), a variant or mutation of the classic Golden Teacher strain of Psilocybe cubensis.
Its name references Ymir, the primordial giant in Norse mythology — symbolizing ancient, transformational, and origin themes, which ties closely to the kind of experiences people report with this strain.
Appearance & Growth
YMIR produces relatively large, thick stems and robust fruit bodies.
The caps tend to be broadly convex, sometimes flattening with age, often with golden-brown tones (similar to Golden Teacher) but with certain traits that make the visuals more striking.
Colonization is slower than average, meaning it takes more patience to get full mycelial growth, but once it fruits, the yields are described as potent and visually impressive.
Psychoactive / Experience Characteristics
Users report deep, emotionally intense experiences. Common descriptors include mythological, archetypal visions; cosmic sense of origin, transformation, rebirth, and dissolution.
Strong visual depth is often mentioned — colors, patterns, and perceptual distortions are more layered than “baseline” Golden Teacher in many accounts.
Also noted are introspective and symbolic journeys — good for people who are exploring inner work, spiritual themes, or guided sessions.