It pours with the snow or the rain
only to be intercepted by the leaves
before melting and flowing
through rills and gullies

It channels along surface streams
while infiltrating the underground
as through flow percolates the seams
before swelling lakes, rivers and seas

It transforms from liquid to gaseous
as its vapour evaporates
and the vegetation transpires
while the air from the soils makes its escape

As horizontal advection comes into sphere
it condenses in the atmosphere
to form towering solid clouds
that saturate before thundering aloud

Eventually bursting and precipitating
in showering flakes and torrential rain
continuing and circulating
the hydrological cycle as destined