She also writes: “Is it because my prayers are highly needed in these moments? My gut feeling is that a tunnel has been built to access underground right in my neighborhood for the MAP or something of the sort.” What is she experiencing and why?

Again, she is sensing their proximity because this is literal truth, they are traversing the neighborhood on a regular basis in their comings and goings to survey their handiwork and plan their next incursion. So she is fearing the worst about this and interpreting it to mean they are invading and taking up residence, so to speak, when such is really not the case. They are in her neck of the woods simply because they are focused on California at the moment and so will be bumping into one another energetically. This will not proceed for much longer.