English

The Physics of the Dancing \emph{Deity}: Coupled Oscillators in Himalayan Processions

Physics and Society 2026-01-21 v1

Abstract

In parts of Himachal Pradesh (Kullu and Mandi) and the Western Himalaya, village deities (\emph{devt\=a}) are carried through the landscape on shoulder-borne palanquins or ``raths.'' Participants often describe these raths as agents: they \emph{choose} routes, signal assent or refusal, and sometimes ``move on their own'' as if people are not moving them but are instead being moved. This paper offers : (i) a mechanistic model in which a palanquin interacts with human carriers modeled as coupled limit-cycle oscillators, and (ii) a philosophical analysis of how music and gurus/oracular specialists (\emph{g\=ur}/``guru'' in local English) function as couplings that stabilize collective interpretation, producing what we call \emph{distributed agency}. On the physics side we build a six-degree-of-freedom rigid-body model with unilateral handle contacts, base excitation from walking, and a Kuramoto-Adler phase description for interpersonal coupling and musical entrainment. We prove standard phase-locking conditions (Adler-type capture range) and show how unilateral contact can rectify periodic forcing and inject harmonics, creating parameter regimes in which near-perfect synchrony produces large-amplitude roll. On the simulation side we report an ensemble study (30 seeds per condition) from an archived ``Palanquin Simulator'' package: a ``baseline'' condition produces small roll (RMS0.15\mathrm{RMS}\approx 0.15^{\circ}) and moderate synchrony, whereas a ``music'' entrainment condition produces near-unity synchrony (0.99\approx 0.99) but also robust roll instability (RMS18\mathrm{RMS}\approx 18^{\circ}) and frequent contact loss. We do \emph{not} claim to have validated the model against field data; we treat the simulations as a \emph{proof of plausibility} and as a generator of falsifiable predictions.

Keywords

Cite

@article{arxiv.2601.12872,
  title  = {The Physics of the Dancing \emph{Deity}: Coupled Oscillators in Himalayan Processions},
  author = {Nalin Dhiman},
  journal= {arXiv preprint arXiv:2601.12872},
  year   = {2026}
}

Comments

14 pages, 8 figures