(writing in progress the imediately below was written during a sleepless night in Slovenia; not that it matters much, though.)
I am not unaware of all the different shades of meaning the term well-being can hold, yet it has become progressively more clear that it has been one of my core concerns and interests for the last few years. I don't think I have yet found a concise definition for me.
2020, during the pandemic; a retreat to the countryside, and the need for an alarm clock was no longer. I was devouring Matthew Walker's Why We Sleep, which no matter how many flaws it might have (it's highly dramatic, some say; it's scientifically contentious, others argue) is nonetheless great at highlighting the importance of the process of properly resting in our lives. Shortly after, when already in Lisbon, I started experimenting with my sleep, and came across the beginning of Andrew Huberman's career in the communication of science and specific protocols, establishing links and causalities that helped understand how many of other underlying mechanisms of our body and mind really work.
Combined with the practice of yoga and meditation, I slowly came to appreciate a varying degree of control, which itself manifests as reliability, over both body and mind. Sleeping enough, undisturbed and uninterruptedly, provides a sturdy foundation for comfort and confidence in the vessel that I happen to occupy; and I rely on regular (ideally daily) meditation get some distance from the default mode of action of daily life, and to better handle mental states which I now recognize as (sort of hopeless) rumination – what I should do; what I should be; yadayadayada.