[phyzix5761]

The Mahasi method is quite different. You don't try to calm or control your mind. You observe and note your experiences as they're happening. Over time the calmness comes (and goes) but its not the goal. The goal is to see reality clearly. This clear seeing (which is where the word Vipassana comes from) leads to a change in the habit patterns that cause our stress and suffering.

[hannofcart]

You're right. This is a different technique. This is my simplification of the TM technique along with "japa" (repetition of a phrase) as is typically taught in the Brahmin scripture school mileu.

Since the OP was about achieving flow state and focus, I thought this was relevant.

[specialist]

The repetition I learned (and try to practice) is counting 1 - 10, then repeat. Try to focus on the counting, not follow distractions. Its okay to restart at 1, to pull your focus back.

Worked great for me, when other techniques haven't. Just a good fit.

Much gratitude to you and u/phyzix5761. Sadly, I lost touch with that meditation group and I have been looking for something similar. Now I have your pointers.