Why Haiku?

I focus my thoughts

In seventeen syllables:

Less ramble, more pith.

ram·ble: talk or write at length in a confused or inconsequential way. Synonyms: chatter, babble, prattle, prate, blather, jabber, twitter, maunder; 

pith: the essence of something. Synonyms: essence, main point, fundamentals, heart, substance, nub, core,quintessence, crux, gist, meat, kernel, marrow, burden;