Acupoint Biophoton Emissions Testing (ABET), an alternative diagnostic technique used by practitioners of Traditional Chinese Medicine, illustrates a case of non-linguistic Delome-level semiosis that is understood to form an interface between endosemiotic and linguistic semiotic levels of human (bio-)communication. Performed manually, the technique employs an array of Hypoiconic and Indexical Symbols that, when used in combination, enable practitioners to “listen in” and learn with biocommunicational processes, re-embodying them in a manner that renders them available to conscious recognition and linguistic representation. (...) The Delome formations of the ABET technique afford the gradual accumulation and transformation of practitioner understanding through sign co-performances that achieve triadic relationality mediationally—prefiguring fully representational forms of learning. They demonstrate embodied capacities for pattern recognition, coordination, exploration, articulation, explication and self-governance that may have evolved in advance of representational sign formations, setting the evolutionary stage for them. (shrink)