Light and Liquid

Fluids never fix space nor bind time.
They  pass  around  some  obstacles, 
dissolve some others  and  bore  or soak their way through others 
still.  
From the meeting with solids they  emerge  unscathed, while 
the solids they have met, if they stay solid, are changed - get moist 
or drenched.

- Z. Bauman