I first encountered similar ideas when reading "Wizard of Earthsea" by Ursula Le Guin at about age 9 so I think my notions about it have developed from there. My "true" name came to me later at about age 15 in reading Shakespeare and straight away I knew it was for me. It was as though Shakespeare, the master namer of all things in English, had intended for me to find it. I know that's silly but that's just the way that I felt about it at the time. Years later (recently) I have confirmed my magical name through study and it has become woven and bonded throughout my being by a naming ritual that I went through, of swimming through a lot of names and confirming that this was the right one. It is a single, brief, highly descriptive word that is so low-frequency in language usage that I have never heard it pronounced by another person.
It is not "just a word" for me, but then again "language" is not "just language" for me. I don't believe that it's something that I just "made up myself" or "sillyness", I believe that it's something that was "destined" for me. I don't believe that my legal name ie. my daily use name has any special meaning, to me it is just a label, something that enables people to get my attention easily, and something that many other people share. My legal name and identity also happens to be sort of fraught and complicated, for family reasons. Anyway, for me that is purely for purposes of getting my attention and signing documents and getting paid, it's not for describing who I really am.
I think this comes back somewhat to philosophical concepts of "essence" which were disrupted by modernist philosophical work. The process of naming is an act of recognising "essence", an act of comprehension that it is possible to contain a meaning. When I choose to deny my essence, I feel that I am "lost", I become "fragmented", I "lose myself". When I recognise my "essence", I feel that I am reminded of "who I am", and "where I am going". I am focused on and guided by my "inherent self".
I don't share my "true" name with any human being, it's secret from humans.
I don't mark my tools because they are non-corporeal, "psychic" spirit form only, do not have any tangible real-world form. I adopted this way of using tools because I am paranoid about being trapped in some strange situation where I do not have any access to magical tools. I have been in this sort of situation before, and it was very unpleasant. But, I would not need to mark my tools because being spiritual they are part of me and can only be commanded by me. No one else could access or touch them. They're a part of my being.
Edited by Moly, 11 July 2017 - 11:24 AM.