Watching clouds in the sky is something that goes way back in my memory. A start point for day dreaming.
Recording clouds in paintings and drawings also goes back a long way.
About forty years ago on a road trip across Canada at Riding Mountain Park in Manitoba. A very warm humid day cooked up a full on thunder head. I watched the clouds build into a gigantic pyramid of boiling storm. Within minutes the sky broke and the thunder and lightning and rain soaked us all. Dream on.