Mechanically that translates to spending mutually exclusive opportunities, exp, and ap on something in excess of what's needed to solve our actual problem so that we can force a particular patch into place.
Okay, just to articulate to you part of what I'm thinking with voting for this: I do
not want to get Meng because it "replaces sleep," because it doesn't do that: Meng is
way better than sleep.
WoD sleep by default only restores
one point of willpower per
full night of sleep. That means we can only sustainably spend one point of willpower a day without eventually running out, taking multiple days off from spending any willpower at all to recover, or getting some other method of restoring willpower. And every willpower restore method except for Meng is generally clunky and only restores a single point at a time.
We are going to want to be able to spend
a lot more than one willpower a day without multi-day recovery breaks. There's just so many things we can use it for! We can spend willpower for extra successes
per roll, which is great for anything really important, we spend
two points of willpower every time we activate Shintai, Qiao of the Devil uses a lot of it for awesome effects once we eventually get it up and running, and Sorcery Paths spend it like
crazy once we learn those.
Compared to all those expenses, a measly one willpower a day from getting a good night's sleep
just doesn't cut it, so before we can really invest in and really effectively
use any of the powerful effects that cost willpower, we really
need Qiao of the Meng. We'd still want it really badly even if the nightmares weren't a thing for exactly that reason.
So, yeah, that's why I'm voting to learn Qiao of the Meng. The nightmares are just a good excuse for me.