When everything's flowing and I'm "in the zone", indeed everything *is* flowing.I feel strong, clear and everything's good. Afterwards, I'm happy at a job well-done.
I know from my busier periods that once I've done about eight readings (basically a whole day) I start to flag a little. That's about food, water, caffeine and walking around outside. Also, every so often, in a day of many readings, I may find I have to "retire" one or more decks. As long as I'm careful about that, everything's good and readings leave me better at the end than I was at the start.