One moment the light can be luminous and breath taking and the next moment flat and grey. I saw that very powerfully when I was in the Outer Hebrides. Light there could change dramatically in a matter of moments.
Of course, one needn't look any further than their own backyards to experience the ephemeral moment. I got up very early one morning just as the sunlight was illuminating the left over hydrangea blossoms. Amazing really that after the heavy snows this winter these delicate, paper-like flowers were still there...still able to catch the glow of early morning light. A moment later the glow became a glare and the effect was lost.
Some may credit pure luck, to be at a location just as the light does something magical but I prefer to believe as the great Irish poet W.B. Yeats admonished...
The world is full of magic things patiently
waiting for our senses to grow sharper.
In our obsessive search for the fleeting, the transitory, the momentary we may be missing out on the magic of our own backyards. Become aware of these brief times of luminosity whenever and wherever they occur.