have you ever experienced Unity?

[godwide_void]

When you directly undergo the experience of merging with the Godhead or the dissipation of the Godhead, it does provide an excellent reference point to be able to better grasp that concept, huh? This 'alchemical marriage' method you used sounds very interesting, moreso that it led to this ineffable experience! Would you mind elaborating further on how you performed it?

To answer your OP, my most profound experience of unity/the Divine was that of beatific vision, or in other words, the unfiltered perception of the image of the One Infinite Creator, in which I arrived at a point of absolute nothingness in a very deep abyss, with a voice relaying to methat "we shall show you the 8th Density". The next moment an image began to form, what appeared to be a massive throne which didn't exist in this void... the void was apart of it. Every inch of it was embedded with galaxies, star systems, and as each moment passed it would expand, and more galaxies sprang forth within it. My awareness was such that I both was observing as well as simultaneously becoming this being, and despite all this activity I felt a sense of everlasting oneness while I was in its presence. The entire experience lasted for an hour in our world, but in that dimension time was a non-issue... After a while I could no longer process this and blacked out, with my awakening feeling like I'd awoken from a very, very, very long dream. It actually took me about 30 minutes to recall what had just happened, but as soon as I did the experience retained itself clearly and vividly in my mind.

That vision is what I hold in my own life as proof of the truth of the Law of One and what guides me to this day.

Edit: My method of having achieved this moment of complete penetration of the veil was through the spirit technology dimethyltryptamine following Syian Rue to sustain/extend the experience by preventing the DMT from being immediately broken down (or at least to allow it to remain active for longer than 5 minutes, as the DMT was smoked as opposed to orally ingested) while in a closed eyed meditative state.