That's why The Empire Strikes Back introduces Yoda as a rubbery little nuisance, seeming at first to be the comic relief, until we realize this wacky little gremlin is the spiritual and philosophical heart of the trilogy. The wisdom that comes from this troll sets the foundation for a creed which is more adored and revered today than many religions.
And it's pretty much all s**t.
Take Yoda's chilling warning to Luke about the consequences of his decision to go to Cloud City:
"If you go now, help them you could, but you would destroy ALL for which they have fought and suffered..."
Set aside that this is vague to the point of incoherence, it consists of two separate clauses which are both proven completely untrue within minutes of Yoda saying them.
You're full of s**t, old man!
The marginal "help" Luke provides to his friends consists in absorbing a Washington Generals-level beatdown from Vader, thus creating a painful and humiliating diversion to distract the Sith Lord from his friends' escape. Luke showing up at Cloud City has NO negative consequences for anything the Rebellion was fighting for or anything else we can see for that matter.
And let's not forget that Luke also "helped" them pick up Lando Calrissian, the guy who eventually joined the Rebellion and BLEW UP THE SPACE STATION CARRYING THE EMPEROR. In other words, the guy who ended up winning them the war.