Something struck me the other day when walking into the building where I work -- how you perceive a building very much depends on your state of mind.
The place where I work has a (fairly) impressive entrance lobby, with a dedicated and very professional receptionist and comfy chairs and corporate literature for waiting visitors. There's a big stairway that sweeps down into the lobby and, when you come down that stairway, those people waiting in the lobby in the comfy chairs look up expectantly.
I remember coming for my interview here. It all seemed rather intimidating at the time -- waiting and watching the stairs for my host to come and collect me. But now that I work there, the building doesn't seem imposing or intimidating at all. It's all quite familiar; it's just where I work, after all.
Isn't it interesting, then, how your mental state or the way you are feeling can affect your perception of concrete things?