Meaningless meandering about dreams

For the last 10 years or so most dreams have signaled time to wake up by catching the bus from downtown Spokane to home. This was the real-life routine during the 90s. After 2001 I’ve been working from home. Dreams always run 20 years late; in the 90s most dreams were still in Oklahoma where I lived in the 70s.

The downtown location is partly imagined. In real life I typically went home directly from my office in the Farm Credit Building. The depot was only a block from there. Occasionally I walked to the library after work to pick up a book. From the library I caught the bus at a stop on the next street, which was just a sign next to a blank wall, not a proper bench or shelter or building. In dreams this stop is ALWAYS a real bus terminal, similar to big-city Greyhound terminals. Sort of like this one. It has two covered stalls for buses and a lobby between them. This building is always the same, so predictable that I could make a digital model of it.

Why does the dream scripter pick the occasional library location, not the normal depot? Why does it replace the simple sign with a fully detailed structure? And why does the dream itself mean a workplace, while waking up means home? Unanswerable questions.