I see so much overlap of this concept with what is known about dopamine. Seems to me that this practice of moderate relationship with daimon is the practice of mastering your brains dopamine release, sensitivity, and reuptake.
I would start with its relationship to cocaine. Cocaine is a dopamine reuptake inhibitor that results in the brain being flooded with it. This bringing you into the peaks of flow that are hard to achieve otherwise. But the problem is that unlike real flow this one is not connected with real goals in reality. It takes its place by not allowing you to get there without. Until reason, you were doing it becomes irrelevant…

I came to this topic due to interest in the magic of games. I was interested in games as phenomena. How they can create a magical experience unlike any other. In his book, Homo Ludens, Johan Huizinga called this effect magical circle. When you enter it, outside world’s importance fades, there is only a game
But games are not the only thing creating this experience. More generally it so-called flow. In book Drive, I read a couple of very good quotes about it.

Flow is not achievable in leisure, only during active, engaging, focused activity.

“Flow is oxygen to the soul, not a nicety but a necessity” — research is mentioned there. In it, people actively breaking their flow and play activities quickly show fading focus, confusion, and symptoms of psychological breakdown. It resulted in the experiment being canceled quickly because of how fast participants state degraded.

And one definition :
“Flow is a state of all-consuming focus on activity, such that outside world fades out, such that even a sense of self fades away. Such utmost focus in which you loose sense of boundary between you, world and activity”

There is more overlap with what you tell here and what is known about dopamine.
What you say about breaks between dates with the daimon. There are two things about dopamine. One is that it runs out. A body needs resources to produce it. And time as well. Other is sensitivity. As with most chemical signals our body uses, when there is too much, receptors lose sensitivity, same as with sugar or coffee overdosing. You need more and more to get to the same exhilarating state. As you describe the best way is to practice breaks. Allow body replenish resources and abstinence from flow to sharpen sensitivity to it. And then get an intensive and focused session.

Flow is not all good though. It is a peak experience of existence. But it is not meaningful on its own. It is a source of drive, focus, fanatism in chasing something. But it stands behind many addictions. It is a double-edged sword. A tool to be used with care. It is what stands behind workaholics, gambling addicts and others who ruined their lives by allowing it to cloud their mindfulness and broader view on their life. As a parent, I think a lot about this. Our most powerful feature, a source of great achievement and great ruin in human lives. What separates those ruined by it from those who benefited from it the most.
It is also interesting that term daimon mixes with what meditation practitioners call rowing mind. Our subconscious orchestra of never-ending thoughts. An inner voice separate from our conscious self that keeps feeding us thoughts we often mistake for being consciously ours. Sometimes flooding our mind space and taking over our life.
Another name for it is our subconscious self.

These days I look at both flow and mindfulness as opposites. But opposites that should have their turn regularly in your life. You can not be mindful, open-minded and perceptive at the same time with being focused, productive, goal-driven and creative. I view the relationship between those states of being similar to the relationship between strategy and tactics. You need mindfulness to see broadly what goals are achievable and meaningful to you right now, and you need flow to chase them with energy, focus, and dedication.
Those who allowed flow/daimon to choose goals lose sight of their life, themselves and meaningfulness. Those who prefer mindful tranquillity do not achieve much… Flow and mindfulness are tools to be used separately in a balanced way. One misses the drive, other misses awareness of broader context focusing on the immediate.