"Greed, anger, stupidity, slowness and doubt" are called "five poisonous hearts". Because of their existence, our original pure and perfect self will be covered. Moreover, driven by them, they will also commit various crimes of "killing, stealing, fornicating and jumping" to harm others and themselves.
Then these five poisonous hearts belong to the spiritual level, not as tangible as matter. What the TV series is talking about now is that these negative spiritual energies have been transformed into the five basic elements of matter, namely, "gold, wood, water, fire and earth", and then turned into a shapely "five-element mountain", which made the Monkey King breathless and inseparable.
I understand that the essence of intangible spiritual consciousness and tangible matter is energy, which can be transformed into each other under certain conditions. So this plot in the film and television drama is not difficult to understand, right?
Color is empty, and empty is color.
Good wishes!