Apart from the highest eons there exist many others that differ by the level of coarseness-subtlety. The subtlest of them are called paradise. The coarsest ones are called hell.
If we want to save ourselves from going to live in hell after the death of the body — then we have to learn to live steadfastly in light, pure and subtle state of consciousness (soul) while we are still embodied.
Since upon parting with the physical body we will live in the state, which became usual for us during our life in this body. And according to this we find ourselves in the eon inhabited by beings similar to us: evil, furious, irritated, anxious and deceitful — or affectionate, calm, tenderly loving and caring.