Unless there’s something specific on my mind beforehand (eg I’m trying to solve a problem I’m working on or having), no, my goal is generally not to purposefully think about anything and let my mind wander instead. I found often my best thoughts come in their own, when I’m not actively trying to think them.
I'm more a mind wanderer, though for a season I tried to mentally prepare myself for the transition from being at a controlled work environment to walking into a house with two young kids at the end of the day.