Here, the first step is the thermal radiation fluctuation promoted transition and the second step is mediated by the quantum light-matter interactions. Since this mechanism requires strong hybridization between molecular vibrational and cavity photonic excitation (for the second step in Eq. 204), the resonance structure in rate constant modifications appears as a much sharper feature, shown in Fig. . Interestingly, the shape of the rate constant modification profile (blue) is similar to the absorption profile (magenta) in Fig. , which closely resembles the case in experiments, as illustrated in Fig. that allow efficient quantum dynamics of a large ensemble of molecules coupled to cavity photons will be vital in resolving the mysteries of the vibrational polariton chemistry.