Cerberus has been totally exposed int the soul traps thread and the beasts with the many eyes in heaven mentioned in the bible which is also mentioned in the 12 god's religion as zeus's panoptis that helps him see everything on earth.
That panoptis beast symbolizes the moon. Hera's(another name and form of the lunar boss) peacock symbolizes panoptis too, pay attention to its feathers with the countless eyes symbolism.
In the wiki of cerberus you posted take note the trinity symbolism he has identical to what they have given to the god of christianity and his hair/mane of snakes/medusa symbolism which medusa has been exposed the crap out also in the soul traps thread, where her story is the female version of lucifer and is another name and form of the lunar boss.

Devil and god is the same person 2 sides of the same coin which intel was nailed in the batman movies and animes with the 2 face villain! That's exactly how the lunar boss operates playing both sides and a wolf in sheep's clothing!

His heaven after death is a trap and bait for his billions of soul food to simply jump into his belly so he won't have to hunt for them or catching them with convergence vortexes/soul gravity pulling like in dead space 3.