If I may, the two bolded parts are contradictory....
When you say that there is light that then enters your eye balls, that leads to the question of where did that light come from and why is it the way it is. That leaves two possibilities. Either it comes from what it seems to come from, meaning an objective room that does exist outside your brain, or it comes by design from something else that fools your senses into thinking your somewhere that your not. This is similar to the matrix concept. Either case however implies that there is an objective reality outside of the mind to feed input into your eyeballs, be it as it seems or not. By that conclusion either the room exists or it doesn't, and the perception of the room exists in your brain.
Perhaps I'm taking you to literally, however I thought to make the distinction in case you where taking it literally.
Visible light is only a thin band of the light spectrum
It is possible that we are being manipulated to only see a very thin band of reality
In turn this perception of reality being given to us may also be a manipulated perception of reality: the matrix
if we take into account that we are not actually solid and that non of our 'reality' is solid but rather a waveform holographic projection then we can begin to see how our reality or rather our perception of reality is false and that is what the gnostics were saying 2000 years ago
They said that an intelligence they called the 'demiurge' (saturn is an expression of the demiurge) was creating a false reality (the matrix) and that it had entities (kinda like non-organic cyborgs) called 'ARCHONS' helping it to uphold the matrix
The archons feed off human emotion with FEAR being a particularly powerful foodstuff for them. This is all happening on the waveform level
What scientists call 'dark matter' might actually be the real reality
What scientists call 'junk DNA' is not junk at all and DNA is a receiver and also a storehouse of information. Our DNA has been altered (by the archons) to receive and decode the matrix signal
When people report 'alien abductions' where they are submitted to invasive experiments and so on is in fact archon interference; archons cannot manifest for long in this dimension but they can operate through people because they are mind parasites; they have hybrid bloodlines on this earth who are particularly easy for them to synche with....the people we commonly see in power that we might call 'psychopaths' are really under archontic control
The archons lack empathy and creativity and resent human creativity. They like 'psychopaths' operate like a hive. Psychopaths tend to congregate together in hierarchies
The cube is a symbol of archontic saturn and interestingly enough star trek has bad guys called 'the borg' who are non-organic cyborgs who fly around in a cube trying to 'assimilate' people into their hive mind
The matrix films were also taken from gnostic ideas
These gnostics ideas of archons date back 2000 years in some texts (in truth probably much older)
The gnostics tell us that the archons (greys and reptilians) are mind parasites who can remote view our dimension and who can implant bad thoughts and emotions into our minds; they feed off our fear and orchestrate catastrophic events on our earth in order to harvest negative energy
They are upholding the matrix to lock humanity into an enslaved state of being like farm animals but humans have powerful creative abilities and are not helpless in this process; the problem is that the knowledge that would set them free has been violently suppressed down through the ages by the archontic hybrid bloodlines operating for example through the church of rome who waged violent crusades against the gnostics in europe
Even the political system is archontically rigged with both political parties just two faces of the same creature
Thye archontic hybrid bloodlies which so jelously intebred in europe for example in the royal households and banking dynasties control all the areas of human life that might share information such as thre media and education; so as you learn at your university just remmeber that part of the aim of that institution is to get you to think mainly from your left hemisphere of your brain because this helps limit your perceptual awareness
Once you gain your 'degree' you will attend a graduation ceremony wearing black saturnian robes and a black saturnian square hat