Cue for a poem! How about this from Yahia Lababidi who sounds as though he might have done more than a little cloud watching?
to find the origin,
trace back the manifestations.
Between being and non-being
these sails of water, ice, air -
Indifferent drifters, wandering
high on freedom
of the homeless
like ghosts, slithering through substance
in puffs and wisps
Lending an enchanting or ominous air
luminous or casting shadows,
ambivalent filters of reality
Bequeathing wreaths, or
modesty veils to great natural beauties
like mountain peaks
Sometimes simply hanging there
airborne abstract art
in open air
great sky whales, now, horse drawn carriages
unpinpointable thought forms,
punctuating the endless sentence of the sky.