A word that is key

The experts screwed upThey didn't deliverThey dropped the ballAnd washed it downriver

The water runs muddyAfter a stormWho knows if it’s coldor is really warm...

You know, the temperatureDoesn't matterI learned from my friendThe Mad Hatter

He is not quite quiteI must confessA good old manWith a touch of mad-ness

When we were partingHe told me this:Slava, alwaysFollow your bliss

Divorce the takersMarry the giversBecome a husbandTo forests and rivers

Look deep insideFind your allyThen bring up a fireIn your belly...

So, here I amMy mind’s in a twisterTrying to key inRule defying trickster

By golly, I solved itThe Holy Writ!A river is runningStraight through It.