When someone dies in Eos, a process known as the Samsara occurs, where the soul detaches from the body in the Material Plane and rises into the sky of the Spirit Realm. Samsara occurs in three phases, with each phase making resurrection progressively more difficult.
The person has just died, and the soul is yet to detach from the physical body. This is the time where resurrection is easiest, and tends to run for 6 seconds.
The soul has just detached from the body. It is still in close proximity to the body and beginning its gradual ascent into the sky. During this time it is highly vulnerable to magical devices and rituals, such as the Nine Lives Stealer. This phase tends to run for 1 minute.
The soul has completely detached from the body and is waiting to be judged. After judgement, damned souls are condemned to the hells, while good souls are granted a new life in Elysium. Souls that go too long without judgement or are deemed too ordinary for either destination dissociate, returning their energy to the spirit realm. It can take up to 200 years for a soul to be judged.