The Elements of Flow

I've been doing cold showers on and off for 10 years. I did the ice cold bath once, 3 rounds of 1 minute each. You have to really watch your breathing. And trying to just very stay calm and all sort of stuff. If you're not in the flow state, you're like, every minute feels like half an hour. That's the litmus test for knowing if you're in a flow state or not.