Yogic traditions speak of "energy" (prana, chi, ki, mana) flowing through the body. Skeptics dismiss this as metaphor or placebo. This paper provides an **operational definition** that bridges ancient wisdom and modern measurement, identifying yogic energy as **coherent bioelectric activity in gap junction networks, associated with biophoton emission and detectable via GDV, EEG, fMRI, and HRV**.
Brandon Charles Emerick (Tue,) studied this question.