My personal preference is for
panexperientialism (essentially a bare bones panpsychism), with the idea that the phenomenon is somehow connected with change, and belongs to anything capable of change in some way and is probably a fundamental property of nature, as fundamental as space or time.
It's important to divorce consciousness from all ideas of "thought", "will" etc. to consider it's essence which is more connected with "awareness of being", though even that is too complex I think.
Obviously this is complete conjecture, but it has growing philosophical support - at least as an idea worth discussing - I think.
http://www.eoht.info/page/Panexperientialism