This is probably the most contemplative setup that I use:
Pentax SL & Super-Takumar 55mm, Leningrad 4. (Currently loaded with Ilford Delta 100.)
It's a bit shabby, but it works. It also has a comforting factor in its use that I don't feel with newer, more complicated kit.
As well as shooting on film, I take more time metering and composing shots, and that definitely requires extra contemplation. One day I may leave out the meter completely, once I have attained a certain "expoure zen". I wonder how many rolls of film that will take...
There's also the developing of the film afterwards: A process in which I never feel that I have complete control over what happens, but I know that, barring catastrophic problems, the results will have their own pleasing charm - and lend satisfaction and insight every time.
I think that everyone should go back to basics occasionally, when they are able. It's not only informative, but good fun and presents a welcome break from today's incessant, ubiquitous, "fast food" digital photography.