A subconscious is still a part of our consciousness. You are trying to split two connected units.
You can take light all the way to photons if you like but it is still the accumulation of these that create our one consciousness which will have our ego in it.
What we have started is an endless argument my friend. The East has about 8 definitions for consciousness while the West has only about 4. Reading what you put just tells me you think of our total consciousness as a soul and I just do not use that concept.
Soul to me is mind.
Somewhat like this Gnostic Christian quote says.
http://www.pbs.org/wgbh/pages/frontline/shows/religion/maps/primary/mary.html
For where the mind is, there is the treasure.
The Saviour answered and said, 'He does not see through the soul nor through the spirit, but the mind which [is] between the two - that is [what] sees the vision...'
Matthew 6:21 For where your treasure is, there will your heart be also.
Regards
DL