Your experience of the entity parallels strongly what I experienced during Abramelin Operation in 20015/16. The entity, Holy Guardian Angel (or Holy Guardian Alien, as I prefer to call them), also taught me a lot about the body of light and similar concept to Will that you described. The tickling sensation happened a lot during my daily meditations as well. Highly meditative states can produce effects similar to psychedelics and the intensity of Abramelin definitely induced them for me.

The ufo sighting sounds interesting also. @antonchanning and I had a sighting day after working with one of the OpIntruder sigils.

It was received by one of the agents. It's purpose is to help attune agents consciousness to that of the entities. We used a pathworking exercise to charge and fire the sigil. Next evening we saw a very strange green light. It was the weirdest aerial object i have seen in my life and I had many opportunities to witness spectacular meteors (including sound!) and even a ball lightning.

The green light was way weirder than any of that. It looked like a firework but then it did a sequence of vanishing and repairing in a different position in a split of a second. It reappeared in what seemed a bit like a plasma or a cloud surrounding it, very odd looking. Then it changed again and looked just like a solid green large light but began pulsating unlike a plane or helicopter. Eventually it did the vanishing-reappearing thing again and disappeared for good. It traversed the sky in about 10 seconds. Helicopters and planes on a similar trajectory take over a minute to do that. Light was much larger than those we regularly see on aircraft suggesting it was either much bigger or much closer. There was no craft or structure around it that we could see. For comparison, a helicopter producing light of this size would be clearly visible even at night. No flare does what this thing did. There is an air force base not too far from where we live but with vast wilderness surrounding us, I see no reason why they would test over urban area. It was very strange.

Other agents we spoken with also had sightings of anomalous lights in the sky after working with OpIntruder, although not everyone who does sees them.

We want to come back and work with the sigils more at some point but for know our energy needs to be focused elsewhere, besides experience like that takes time to assimilate! It's great to see you putting the sigils to a good use. :)