The greater part of human pain is unnecessary. It is self-created as long as the unobserved mind runs your life. The pain that you create now is always some form of non-acceptance, some form of unconscious resistance to what is. On the level of thought, the resistance is some form of judgment. On the emotional level, it is some form of negativity. The intensity of the pain depends on the degree of resistance to the present moment, and this in turn depends on how strongly you are identified with your mind. The mind always seeks to deny the Now and to escape- from it. In other words, the more you are identified with your mind, the more you suffer.
Source: The Power of Now’ By Eckhart Tolle
I had a long career in Army. I was trained to follow orders, instructions and set rules, taking those as axiomatic. That strayed me a bit from free thinking as happens with all technology users. Basically I am a free thinker always and now in search of some basic truth in my own way. (firstname.lastname@example.org).