The overwhelming irony of self inflicted pain is enough to engage me in one-way conversations for many, many miles.
Dido.
Sometimes i get distracted by rough roads and wish they would fix them before they're so crappy they are literally cobble stone path's instead of rural roads.
I try to think about drinking eating, cadence, keeping my back flat (bad spine). But i often find my mind drifting off to bliss land if the road is smooth and i'm not hungry, cold, hot, or tired. It's an odd state for me. I can remember doing 135km one day and it felt like a 20min ride in the park.