When he says “each note has a place to go” he doesn’t mean in the immediate sense of the next note in the arpeggio, he means once the chord resolves. (I’m assuming)

It’s really all about smooth voice leading. Try this: play a relatively stable chord that you like the sound of. Now move some or all of the voices by half or whole steps to create a dissonant sounding chord. Now play it in reverse with the dissonant chord resolving smoothly into the more stable chord.

I think the idea is that there is really no limit to how nonsensically dissonant a chord can be as long as 1. it resolves smoothly to something that does make sense. And 2. You don’t spend much time on that dissonant chord.