Sources like Metatron and Kryon often refer to the Multi-Earth. As you can see in this Seth reading, that's just our local infinity!
This reading gives one huge reason for each of us to treat every moment with the respect it deserves and to savour the depth of love, joy and beauty in each moment.
“First of all, your own universe is not isolated, either. It is simply the one that you perceive.
“There are in a basic sense other universes within the one that you recognize, and constantly happening in those universes are other events of which you are unaware. The universes exist one within the other, so to speak, and their events also one within the other, so that while any given event seems itself only in the terms that you recognize, it is a part of endless others that exist one within the other, and it is impossible at certain levels to separate the “portions”.”
(The Nature of the Psyche, Session 789)