We all do that, become deep in thought as time slips away. We sort our thoughts, and sometimes think the same thought over and over. Frequently if we write the thought down and some solutions we can get it out of our head. People talk about choices, it leads us to think there is a choice we might really like, sometimes there isn't one that we feel great about, but there are still choices. So we ponder, and hear our own voice talking to us, a friend I admire calls this an "Ear Worm" she gets these with songs and the same line and song stay with her for a day. We met on a message borad a long time ago, and sometimes I like to add song lines to a post and she scolds me that now that will be with her all day. It is like that when I paint these faces and the mouths are too big, I hear Johnny Cash singing, "You Big Mouth Woman" and sometimes it isn't jut in my head he really is as I listen to old CW music on a station called "'Moose Country"
Except right now I hear Jackson Brown singing "Here Come Those Tears" I like the videos of him , BBC 1978. He had a great band then. Enough, and a long paragraph.