When I ask clients to reflect between sessions, write something down, sit with a question, notice a pattern over the week, I can usually predict who will treat it as real and who will treat it as optional homework, the thing you do if the week goes smoothly and skip if it doesn't.
I used to let that slide. I told myself the session itself was the important part, and reflection was a bonus for people motivated enough to do extra. I don't believe that anymore. In my experience, the reflection is often where the actual change happens. The session is where you notice something. The reflection is where it becomes yours.
Part of the problem is how reflection gets framed elsewhere, as a wellness chore, another box to tick alongside water intake and step count. Framed that way, it competes for the same tired attention as everything else on a to-do list, and it usually loses.
I think about it differently now. Reflection isn't a task added on top of the work. It's closer to digestion. You can eat something and immediately move on to the next thing, but the value of the meal happens afterward, in a process you don't have to actively manage but do have to allow time for. Skip that, and you're just cycling through inputs without absorbing any of them.
This matters more for the pillar of time alone with self than almost anywhere else. A breathwork session or a quiet sit can surface something real, a memory, a tension, a question you'd been avoiding. If you close the laptop, so to speak, and move straight into the next task without any reflection, that surfaced thing often just gets buried again, sometimes deeper than before.
I don't think reflection needs to be elaborate. It doesn't require a journal you're precious about or twenty minutes you don't have. Sometimes it's a single honest sentence about what actually happened in a session, written or just thought clearly, before moving on with the day.
What makes it non-optional, in my view, isn't the format. It's the acknowledgment that something happened that deserves a moment of attention before it's filed away and forgotten. Skipping that step doesn't erase what came up. It just means you never got to decide what to do with it.
I still skip my own reflection more than I'd like, especially on weeks that feel too full for it. Every time I do, I notice the same thing later, whatever came up in the session that week resurfaces again, usually at a less convenient moment. That's been enough for me to keep treating reflection as part of the work itself, not the extra credit around it.