The Shining Patch In The Sky

It all happened very suddenly,
On a morning unexpectedly,
A shining patch appeared in the sky,
And was seen by people passing by,
For some minutes it lingered there,
People could only stand and stare,
Then dimming, it started to ascend,
Until swiftly, for a split second,
In the light appeared a darkened face,
Before it vanished without a trace.