This relies on the old Star Trek trope that each person or consciousness represents an energy/katra/soul which is separate from the body. Of course, it makes no sense given that all the people who died not connected to the spore network must have had that 'energy' go somewhere, but hey, it's a handwave and we all know it. Culber's back, pay no attention to the man behind the curtain.
That was the part that got my eyes rolling, because it's clear no one in the friggin writer's room had any idea how the human brain actually works.
Basically, a lot of people falsely believe in Cartesian dualism - the idea that the mind and the body are separate things. Under this loose analogy, the brain works as "hardware" while the mind is the "software." The body is "matter" and the mind is "energy."
But the fact of the matter is, there is no such division. There are of course purely energetic elements of the human mind, like electricity and magnetic fields. But there are also elements of the mind which are only energy in the chemical sense (meaning, unless you want to want to count borrowing an electron here and there, they're bound up in matter). Much of the mind is just the pure physical structure of the brain. Destroy the structure, and that element of the mind is gone. Fundamentally, "we" are not energy. We are organization, which falls apart via entropy.
There are ways you could use an understanding of how the mind works to make resurrection happen. For example, the whole Star Trek "transporter clone" thing is correct, given a materialist understanding of the universe. Perfectly copy someone's body - including the brain - and you have continuity of consciousness - it's literally the same person. Similarly, in principle a virtual copy of your brain down to the molecular level (most scientists don't think quantum phenomena really impact consciousness) would be enough to make a self-aware copy of you in a machine. And in an infinite universe, the chance of "you" somehow inexplicably popping into existence somewhere else after you die is...well...certain eventually.
But just talking about the mind as "energy" is new-age woo. That's the religious concept of a soul, not how the human mind actually works.
I'll grant that Trek has already implied that Vulcan minds do work like this with all the Katra bullshit, but this is at least semi-believable, because maybe Vulcan brain structure is very different from our own, with their minds operating as "software" rather than the mixed software/hardware of our own minds.
