Zatiel and Ezequiel keep channeling the electromagnetic energy from the rainbow ocean into their Infinity Hearts. Once it entered the heart, the Particle of End would burn the impurities and send the forces into the Apocalyptic Stars.
Each Apocalyptic Star would then purify the electromagnetic energy one more time before loading it into the cells until they could not endure and explode.
Other than destroying the cells, this process was also helping the Particle of End and Apocalyptic Stars evolve for the next step of the True Soul Path of Power.