The quantum brain dynamics theory was first proposed by two scientists, L. M. Ricciardi and H. Umezawa, in 1967. The theory stated that the quanta of long-range coherent waves within and between brain cells showed a possible mechanism of memory storage and retrieval in terms of Nambu–Goldstone bosons. This theory was further fleshed out into a theory that encompasses all biological cells and systems in the quantum biodynamics of Del Giudice and co-authors. Mari Jibu and Kunio Yasue later popularized these results and discussed the implications towards consciousness in their paper, '«Quantum Brain Dynamics and Consciousness» (量子脳動力学と意識, Ryōshinō Dōrikigaku to Ishiki?).
Studying these papers and with the technology of VR rather highly advanced, the developers at Rath decided to put the theory to the test. With the invention of the «Soul Translator», they intended to manipulate the so-called «Evanescent Photon», in other words, a light particle that acts as a quantum unit of the mind exists within the microtubules of a nerve cell. The light particle exists in a state of indeterminism (meaning a state where actions might happen without apparent causes) and fluctuates according to the probability theory. A collection of these particles, a «Quantum Field» which Rath has given the name «Fluctuating Light», which is abbreviated to «Fluctlight», is what comprises the human consciousness, in other words, the human soul.