Tesla coils generate high voltage through a combination of transformers, capacitors, spark gaps, and wire coils, with a larger coil amplifying voltage due to magnetic field changes from a smaller coil. Feedback between the coils contributes to achieving very high voltages. The performer, protected by a Faraday cage made of chain mail, experiences discharges when approaching the coils, which recharge rapidly. The precise timing of these discharges is particularly noteworthy, showcasing the intricate design and functionality of the Tesla coils. This technology effectively demonstrates high-voltage electricity in a controlled manner.