Brilliant white light glides above tree line, no sound but a very faint hum.Yesterday morning I woke up early to catch the ferry. It was about 5:00 am and still pitch dark with a clear sky. A very brilliant white light just above my tree line caught my eye from a small second storey window looking north. It is hard to judge size, but I'd guess it spanned two or three tree tops from my vantage point, which would make it very large projecting outward.I have to stress that I did not have my glasses on, so I could not dicern shape, but that made the experience no less strange. The light moved slowly from east (Eastsound, Orcas Island) to west along the tree line. There was a slow pulsing light seemingly attached under the primary light of smaller size, but also bright white. The light was bright enough to send rays through the trees, as you will sometimes see when the morning sun shines through on a misty morning.I cranked open a window to try to hear what this was. It was virtually silent except for an almost imperceptible reverbant humm. Velocity was constant, I'd guess it passed out of view well inside of thirty seconds. This is the first time I have experienced anything like this.((NUFORC Note: Witness elects to remain totally anonymous; provides no contact information. PD))