(noun) A mixture of water and soil or fine grained sediment.
"They muddy the water, to make it seem deep."
"Do you have the patience to wait until your mud settles and the water is clear?"
"Muddy water, let stand, becomes clear."
"Even in the mud and scum of things, something always, always sings."
"Trying to understand is like straining through muddy water. Have the patience to wait! Be still and allow the mud to settle."