Our own useful talks culminated with a huge sang, and the sang was rewarded with a really unique atmospheric sign: a rare, 360 degree, horizontal, double rainbow. I have never seen one before. In the photograph of our flag, above, you see the common sort of rainbow. The one that signed our sang was directly overhead, like the canopy of a tent (or the roof of a ger). So, if you laid down on your back in the middle of the property, and looked straight up into the sky, you would be looking at the bullseye of a rainbow "target," so to speak (kindly leave all gratuitous "dzogchen" comments at the door).
The lamas were grabbing up every camera they could find to get photographs, but it was really rather difficult, owing to the rainbow's altitude. We managed to get a couple of shots, but they are low color contrast, and I recognize they don't reproduce well on the web. You can click on the picture below, save it locally, and then use your image editor to examine it closely.
Like the man said -- there is no auspicious or inauspicious, but as there is auspiciousness free of any reference, so let it be thus.