Disambiguations without full answers.

Operation Looking Glass (Wikipedia) is the airborne control center that mirrors the Offutt underground control center in continuity of government. Can involve the Doomsday Plane.

Project Looking Glass (Wikipedia) is a 3D Linux windowing environment. There are several other meanings of this name.

Project Looking Glass is also a USPS sting operation that led to the USSC case Jacobson v. United States (Wikipedia). The inspectors sought to round up buyers of child porn under new laws; the majority (including Thomas) ruled that Jacobson had been entrapped by the sting and had not shown sufficient predisposition to crime. (The article also calls this Operation Looking Glass, but that is not sourced.)

Project Looking Glass (Bob Lazar, Bill Wood) is mentioned by the links here and apparently relates to supposed alien technology. I repeat my warning: Q says to read the Bible and the Bible says that there are other sentient beings in the universe, some of which are called demons. Don't go anywhere near aliens without being covered by the blood of Jesus.

Project Looking Glass (Q) is mentioned in post 3585 (11/11/19) with "Going Forward in Order to Look Back" and a tweet referring to 1234 and 3579 (also 11/11/19). 1234 affirms unified America "11.11.18.", but the later posts show that this means a Department of Defense IP range. This suggests this Project is a DOD continuity work (it has been taken as including assisting with maintaining the 8kun board so Q could keep posting); that deltas (one-year) are important; and that (if future proves past) the government's later activity will allow us to better assess its earlier activity and Q's earlier drops. That is, an earlier drop contains a code, and a later event explains and proves the code, constituting a "reflection". Sorry, I see no reason to assume Q is referring to alien technology here, especially because believers in Jesus already have all that technology (time travel, future viewing, mind manipulation, etc.). :-)

"Through the looking glass" (Q) is mentioned in post 9, at a time when many "Alice & Wonderland" posts were planned. The context is Democrat subjugation of blacks and an implied risk of loss if "the truth about Haiti is released". The suggestion is that Haiti "relief" is a human trafficking operation and Democrat support of it, if revealed, would convert blacks to Republicanism. This "reflection" seems to be the reversal of the views of a large demographic group.

"Think MIRROR" (Q) in posts 128, 666, 1953 includes several reflections: Anon graphics reflect Q posts; posts reflect news (past reflects future); map/legend reflects view/picture; items in sequence reflect each other (keystone reflects lower stones); national events reflect global (antifa reflects the 1932 KPD antifa).

"Mirrors and disinformation" (Q) in post 1685, taken with the prior posts, seems to indicate that some information given by Q is meant to be misunderstood to distract from its true deeper meaning (like "11.11.18."). Further: "Learn to distinguish between relevant/non-relevant news. Disinformation is real. Disinformation is necessary. Ex: US ML NG (1) False SA True" (128 again). This suggests that statements about Saudi Arabia (e.g. post 57 ff., significance of sword dance for Trump) are accurate on the surface, but statements about US Marshals and National Guard (e.g. post 1 ff.) are misinformation on the surface but have deeper true meaning (planned deployment and arrests 2021).

Finally, "For now we see only a reflection as in a mirror; then we shall see face to face. Now I know in part; then I shall know fully, even as I am fully known." – Corinthians 13:4-13.

So, Q mentions a Project not an Operation, but what does it mean? Is the primary meaning as simple as a much better sting operation to defeat a network of human traffickers, and in context the denouement will reunify America? That may be. Is Q referring to a Project of the same name in the ufology community? That is unlikely (all the speculation about quantum computing or time machines comes from anons), unless it refers to the ability to know the future already granted by faith in Jesus. At any rate, it seems like many uses of mirroring reflect and invoke one another and most mentions are multilevel.