You don’t really have a name. It isn’t inherent in the essence of a human. It’s just arbitrary sounds your parents made up as a reference to you and to get your attention. Names define things and summons people when spoken – and are as such a kind of spell.
There is a lot of truth in that you have power over someone if you know their name. How much power does your name hold over you? Is it possible to take control over the spelling of your name and thus change yourself? Or to shed that influence entirely by becoming nameless?
Names can be used as spells to inflict discomfort and pain. Mispronounced, distorted on purpose, or a name or epithet you find wrong or degrading. And you can literally destroy someone by using their deadname (name from before a gender transition).
The power of names can of course also be harnessed for benign purposes. By taking control of what you are called you can influence both how others and yourself perceive who you are. A magician could find many uses for magical aliases as they sets your mind and the minds of others in a certain, chosen state. A well constructed alias or epithet is similar to a mask changing your persona. You become different.
A way of intentionally causing change in yourself is if you very subtly but constantly refer to yourself as for example “The Author”. Everyone around you will come to adapt that eventually and you’ll be known in their minds as “The Author”. I call this effect “mirroring yourself” since you create a desired image of yourself in the minds of others and when they reflect this upon you it will reificate the change in yourself that you strive for.
So in essence: If we name something it is instantly changed, it’s made real or changed in some way. An alteration of reality. Names are a strong magical tool that can be used for creative and destructive purposes. Be careful how you name people.