The Totality is the oldest energy source in existence, and the power core from which the Multiverse was created.
Inside the Totality is all knowledge in existence, including the answer to how the Multiverse was created, and by whom.
Long ago, The Cosmic Raptor sent by the Judges of the Source came to the fallen Super Celestial Perpetua and sealed her within the Source Wall along the totality of the power she hoarded, trapping her inside a doorknob as a cage. After the invasion of the Dark Multiverse, the Source Wall was broken by the Justice League, causing her cage, the Totality to be released and send hurtling toward the center of the Multiverse, Prime Earth.
William Payton was hit by a small piece of the Totality when the Stellaron-5 satellite attempted to capture a fragment of the its power decades before it would arrive in full, granting him a connection to the Totality and solar based abilities.
Much later, Brainiac was able to redirect Will Payton's power to the Totality, restoring the physical form of Perpetua.
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