Understanding our consciousness is like a mirror trying to see its own reflection or fire trying to burn itself. It's an impossible task. So to properly get behind what makes us tick, we would have to let go of how we usually understand things.
We cannot think of consciousness as a three-dimensional object in space and time. Even modern science in its current form can't adequately pin down what consciousness is, let alone how it functions in relation to the laws of physics.
The only thing we can say for certain is what we can see within ourselves, that consciousness is an aspect of life that is either generated or channeled by living beings.
So what does that mean, that there is no life after death? But how can that be? If all things in the universe are made of matter and matter at its core is just energy, and energy cannot be created or destroyed, then the light of our consciousness must go somewhere after death.
Alchemist, the river of our consciousness may flow eternally; only the path it takes cannot be seen unless looked at through the eyes of an eternal being.
If consciousness cannot be destroyed, yet it only exists within life, it may be possible that we move onto other realities where we still exist in another living form. Anything can become a new vessel for our consciousness: other people, new incarnations, life-forms on alien planets, and even stranger, alternate realities. Perhaps in one reality, you suffered an untimely death. This death may lead you to incarnate in an identical reality where you are alive and well.
For this reason, we cannot limit consciousness as an aspect of ourselves or our bodies. Even if the body initially generates consciousness, there's no reason to believe that it dies along with it. Our consciousness may be a part of everyone else's, spanning across the multiverse and space-time as an infinite non-local entity.
There's always room to wonder in this universe of ours.