It's not the background to consciousness but more like its substance. What is in the background, or at least almost completely shrouded over by noise is the 'instrumentation' that orients the questioning of this. Apart from that any such questioning is at best a matter of doubtful logic. Need there be any substance at all? Isn't is just a metaphysical illusion deriving from misused language? An endless philosophic 'project' with no way of reaching an outcome? Admittedly the constitution of experiencing is utterly opaque, inadequate to explain itself in any terms available to it, but that doesn't mean that the key to it is concealed somewhere apart from a computational theory yet to be perfected. To put aside any objective path is already a big step, to know that is what you are doing and why.