A PEMF web using immersive, flux-guided, micro-coils to direct intense, deeply penetrating, magnetic flux into a subject from each micro-coil capable of pointing in an arbitrary direction. Micro-coils are spooled around iron cores, insulated properly, and soldered to connecting wires, all embedded in a polymeric resin, such as cold-cured silicone resin. Nodes protect, enclose, insulate electrically, and otherwise protect the micro-coils. Connectors between nodes provide mechanical stability against breaking of wires, while permitting folding, bending, buckling, and otherwise deflecting to position the nodes as desired with three degrees of freedom.