Our physical bodies are like cups, each holding a certain measure of water. When the cup breaks, and our body dies, it is like the liquid therein falls into an ocean that was always there beneath, and out of sight.
In this ocean we continue to exist, not as a cup - for that is gone - but as a part of a greater and more magnificent whole.
This whole is both the afterlife and God - it is Heaven and Divinity as one - for we are all but a part of the One, briefly separated, and in death we return to union.
In that union we experience God fully - there is utter bliss beyond all measure of experience, and what is experienced is beyond all human comprehension. For in death we exist in a state that, to the mind of a mind, is like the mind of an ant to ourselves.
And yet the physical world unfolds - there are cups beyond number nor measure - and when the cup is again dipped then for some brief moment we are again departed from God as a whole, but not as a part, for a part of God is carried with us.
In this way Giod experiences itself through the many manifestations of reality that are beyond number nor measure, nor understanding from the feebly small human mind.
The part of the cup that thinks it is a cup - that is lost upon death. But the water remains. The water itself is sometimes called the soul, and how that water moves can also be called the spirit.
A brief opinion.