YOUR NAME and many names are spelled incorrectly in this "alternate reality" [alternate incarnation and spirit?] / CERN???
What happens when we have a vision of a past life?
Well, some say, the past has happened and can be accessed.
If it is your past, a past incarnation, there is past life regression.
See the works of Michael Newton, for example his book, Journey of Souls (Case Studies of Life between Lives) available on amazon.com.
What happens when we have a vision of our future life?
We have time-travelled to one of our many potential future multiverses.
An example is when someone has a vivid dream / vision of something that actually happens two years later.
So, the Mandela Effect - Multiverse Explanation is plausible.
Now, we move to the implications for one's spirit.
Does our spirit/Sub-Consciousness which gives us vivid dreams/visions, spirit/sub-consciousness not as constrained by Space-Time exist as a multi-entity?
We are there in each of the multiverses--to the extent the multiverses include our life as opposed to our death/non-existence?