Sirona:
Energy isn't destoyed.
True, energy can neither be created nor destroyed.
I believe that at death, the soul (which to me means conscious energy)
I'm not really sure what this means. There is no clear consistent definition of the word "soul" but you have defined it as "conscious energy", two words which are both clearly defined, but together mean nothing. Energy is not conscious. The energy used in consciousness is generated by the body and is measurable. The body stops generating this energy on death. The energy doesn't have to be destroyed. The body simply ceases making the matter-energy conversions it did while alive.
becomes more connected to other spiritual energy
This is something that, to the best of my knowledge, has never been measured. How exactly do you define "spiritual energy" and how does it relate to actual real energy, of the kind that commonly exists in our universe?
(which isn't as possible in physical form and that in itself serves a purpose). Therefore the energy or spirit rejoins the collective energy which is most "like" theirs (like attracts like). This doesn't mean that you'd have conscious spirit beings who used to be earth-worms, you'd simply have energy, which beings of their nature rejoin (and are reborn for that matter).
Imagine no disconnection between spirit beings. The way we interact with such beings however is that they manifest in ways in which we'll recognise them. For instance, my great granny lived a life as my great granny, but she didn't live ONLY that life - she has been incarnated however many times. Therefore, how is she going to appear to me? She'll appear how I remember rather than how her spirit (or energy) really is.
So essentially you believe that every living thing has some sort of "energy" above and beyond what can be seen, felt or measured by any known instruments, which "energy" survives the death of the organism and joins with that of other beings but can at times form into facsimiles of the various beings which it was a part of, and interact weakly with the physical universe. Is that a reasonable description?
That sounds silly unless you remember that the energy of every creepy crawly that ever lived did continue on and was recycled. So you don't get spirit creepies, just energy.
To be honest, I really wish you'd get a word other than energy to describe what you're talking about. Energy has a real precise meaning in the scientific world, and that ain't it! The actual energy present in a closed environment that contains a life form will remain exactly the same when that life form dies. There is no net loss of energy. What you're talking about - the "spirit" has never been measured. It is the matter that used to be part of life forms that gets recycled.
Evolutionarily speaking, I believe that humans have evolved to have self-consciousness and that when we die, that self consciousness isn't eliminated.
While consciousness isn't fully understood, it appears in every measurable way to be a function of the brain. Physical or chemical changes to the brain alter consciousness in ways that are well-understood (and indeed, some that aren't). It is not at all clear to me how consciousness could continue to exist when the brain that caused it does not. To me, it's like saying that when you write off your car, that as well as some of the metal being recycled to repair other cars or to make washing machines, that there is a sort of intrinsic "car-ness" that lives on, independent of any matter or substance driving around in a car spirit world without an internal combustion engine. When talking about machines, the idea seems patently absurd. I consider it no less so when applied to life forms.