Memorization and internalization of skills

When we memorize, we store information in the "repository" of our brain. This data can be retrieved each time we need it.
The main issue is that memorized data dissolves under duress, when we are stressed and anxious.
Memorized information is accessed consciously through a process of retrieval from memory, while internalized knowledge can be obtained effortlessly without any conscious thinking.
Accessing memorized information requires effort and concentration. Fear or stress can interfere with that process, and in some cases cause that information to disappear entirely from memory.
Memorization creates individuals who can regurgitate but can't adapt when conditions or environments change.
When we have internalized a skill, we don't need to remember how to apply it, it just flows out of us without any effort.
A musician doesn't try to remember music theory, the music simply flows through him.
A speaker who has internalized oratory skills doesn't retrieve words from memory, language emerges from him naturally and effortlessly.
Experts who have internalized their craft don't think about equations and principles, they simply "do".
The shift from memorization to internalization happens through massive repetition, and also through applying the acquired knowledge in different contexts and environments until it becomes our "operating system".
The distinction between memorized and internalized skills is evident and clearly visible under pressure.
Mastery appears effortless, because the skill has become automatic through massive iterations.
The keys to that level of competence are deceptively simple. Repeated, varied practice and consistency.