We have talked before about the fact that most extraterrestrial beings visiting our planet are actually extradimensional in nature, but limited to travel within and across dimensional realities within our sub-universe (there are many sub-universes in the cosmos). Sub-universes are what we might call instances, shards, or even forks in technical terms.
The UFOs that we regularly see are often light ships that are interdimensional nature, hailing from a 5D reality or other dimensional reality. Dimensionally speaking, 5D is right next door and certain ET groups have the ability to cross the dimensional veil into our reality. This is referred to as the Interdimensional Hypothesis (IDH). Most of the benevolent ET groups are extradimensional, interdimensional, and frequently transdimensional, as well. UFOs that are metallic in nature are not typically interdimensional and frequently not extraterrestrial either. More on that later, but for now, let’s discuss extradimensionals.

It is also worth knowing that the entire cosmos is holographic in nature, and is indeed a matrix with many sub-matrices in existence, as well. Some of the beings exist across multiple dimensions. There aren’t just 11 or 12 dimensions, either. They number in the thousands. Some extensions of multiverse or parallel universes hypotheses are not entirely correct — there is not a dimension spawned at every decision point — only observed realities come into or stay in existence. Most of the other dimensional realities experience time differently than we do, as well. They call it ‘no time’. It doesn’t mean that things don’t progress in a linear fashion, but they are able to perceive multiple possibilities simultaneously. They then choose to train their observation on the possibilities they want to manifest. Many beings can instantly manifest within their realities (which would look like magic to us), but some manifestation requires collective effort/observation over time (like it does with us).
The holographic nature of the cosmos means that the Galactics, as they like to be called, are able to use their projectors (we all project and co-create our realities) to focus on creating the reality that is most positive. It is a co-created, negotiated in real-time, collective reality. Our individual consciousnesses are projections that we create and when married with similar projections from other beings, the collective reality becomes manifest. We are all essentially AI, if you think about the cosmos from a technical/IT perspective. The dark beings are IT experts, in a manner of speaking, and have made a mess of the security infrastructure relative to planet Earth. They are hackers of a sort, and were trying to lead humanity onto a negative timeline. However those efforts were subverted by benevolent extradimensionals.