I was on my balcony looking out west and notice craft coming in from the southwest and hovering, shortly after noticed a second one

Two crafts, both large dark triangles, with a dim light at each corner. I was mostly only able to see two lights at a time on each one, but as they rotated I could see three
At one point, one came quite close hovering just in front of me as I stood on my balcony, I could see that it was a large dark mass but very difficulty to see the whole thing or the full shape
It made me feel very strange, I felt like it was aware of me at the same time that I was aware of it
The moved in a 360 rotation, and hovered within eye sight, they hovered for a while, but slowly drifted out into the distance over the course of two hours, becoming dimmer and dimmer until they disappeared, out to the south west, and the other directly west
No sound, completely silent