continue to pay rent in future anticipations. If a belief turns deadbeat, evict it.

I guess that "paying rent" was not only a metaphor xD. But it's really a good advice to cut back on everything that lacks practical use, when you're on tight schedule/budget.

Because it is all, in the end, one thing.

So is this similar to the idea of dependent origination (i.e. mutual interpenetration of things) found in Buddhism?