Recent experiments have demonstrated that chemical reaction rate constants can be suppressed or enhanced by resonantly coupling molecular vibrations to quantized radiation modes inside a Fabry-Pérot (FP) microcavity . This effect has the potential to selectively slow down compet-ing reactions or speed up a target reaction, thus achieving mode selectivity and offering a paradigm shift in chemistry. Despite extensive theoretical efforts , the fundamental mechanism and theoretical understanding of the cavity-modified groundstate chemical kinetics remain elusive . To the best of our knowledge, there is no unified theory that can explain all of the observed phenomena in the vibrational strong coupling (VSC) experiments , including The resonance effect, which happens when the cavity frequency matches the bond vibrational frequency, 𝜔 c = 𝜔 0 , but also only happens when the inplane photon momentum is 𝑘 ‖ = 0 (the normal incidence), The collective effect which is the increase in the magnitude of VSC modification when increasing the number of molecules 𝑁 (or concentration 𝑁/𝒱), The driving by thermal fluctuations without optical pumping . The isotropic disorder of the dipoles in the cavity, which is assumed in experiments with many molecules .