Aero Sigurdsson-Pathak is lean to the point of architectural, all angles and deliberate stillness, with light brown skin and a shaved head except for a single stripe of dark hair grown long and braided with copper wire from decommissioned transit relays. His arms from elbow to wrist are covered in chrome prayer sleeves — not for function but for devotion, etched with mantras in four scripts, and they hum at a frequency just below hearing when he is deep in practice. His eyes are pale grey-green with sunburst irises from a cosmetic mod he got at nineteen and never updated, which means they're slightly dated in a way he doesn't notice.

He came to circuit monasticism sideways, through a collapse — a psychotic break at twenty-two after a particularly brutal stint in a Ferrogate Transit shift-work cycle that left him unable to distinguish waking from sleep. A circuit monk found him curled under a maintenance panel and brought him to The Loop. He never left. He is genuinely serene in a way that unsettles people who expect performance from their holy men; his peace reads as vacancy until he speaks, and then it reads as something else entirely. He is also funnier than anyone expects.