The movie version of Cloud Atlas isn't even a perfect example but one of my inspirations here, since the plotlines there are held entirely together by THEME even if someone doesn't notice the tangible plot connections.
I'm also thinking Richard Nell's Ash and Sand series where the two main POV characters are on completely different continents (in different time periods even) with no hint of the other's existence but eventually the two plots cross over into eachother by the end of book one and beginning of book 2.
I'm trying to get inspiration for the fantasy story I'm writing in which I tell the backstory of my main deities concurrently with the main plot, both to show how the physical world is both a physical manifestation of the same patterns/themes found in the spiritual. I'll eventually show how they're intimately connected but I want to know how to make the audience trust it's going somewhere even if there is little shared between the two different plots for awhile other than theme. I understand some foreshadowing will be necessary and yes one or two of the deities will actually show up in my modern day plot by the end
by jesster_0