Yes! Your experience is closest to mine. I tried Sam Harris's meditation, Joseph Goldstein's insight meditation, and came across "The Headless Path". This led to multiple moments where my consciousness expanded to fill it's container, in this case my old apartment, or a bar where I was playing music, or a shore next to a lake. It's almost like I became a 3D VR panorama of what I could sense, my center fell away and I fully absorbed the hundreds of sensations as one giant sphere.

In this style, douglas Hardings Headless Path, you're attempting to realize that in some sense, "you" are not in your head. That's where we "feel" like we're centered, mostly because our eyes, ears, nose, and mouth are there. But even in reality, we can look for evidence of our head and find we don't have one. All we see is a dark void behind our nose. And behind that, we can feel what, our headache or sinuses, or the back of our head. But how are these "behind" our eyes? Aren't they just in a big cloud of sensation, too? And if we open our eyes, and let our gaze stretch and expand very widely, we might literally become absorbed into our surroundings, we'll feel like the world, not just a head.

Really amazing feelings. I encourage folks try insight, mindfulness, and headless path meditation.