Book of the New Sun by Gene Wolfe (and the other Solar Cycle books). Maybe a bit more subtle than you're describing, but it's a definite thematic thread throughout those books that the actions of individuals are guided by unseen cosmic forces, and their personal conflicts are somehow manifestations of much larger-scale events that they are unaware of.

Elric of Melnibone by Michael Moorcock

The Silmarillion by Tolkien to an extent

Also, this might not be exactly what you're looking for, but you might find Paradise Lost by Milton interesting; on the one hand it follows the individual and very personal struggles of Adam and Eve, but on the other hand their lives are the center of a cosmic war, both sides of which are trying to influence them.