No matter the ability level of a guitarist, he/she tends to learn music similarly. It's not a groundbreaking idea that we all start off kind of clunky at first with something brand new, nor is it surprising if at some point we learn it and find our way. It's definitely not a new idea either that if we are persistent in following up on what we had learned in the first place, we'll master it one day. I wrote about this process once before, but mechanics, flow, and mastery are important enough stages of learning that they are worth a refresher.
Mechanics are exactly what they sound like. After we start learning, there is a period where it just doesn't quite work yet. There's a bit of struggle, a bit of rebellion to this part. However, the clumsiness will sooner or later drop away. At that point, we get a whiff of where we could go. That's the goal of mechanics in a nutshell: You get an irritatingly small taste of mastery.
Flow is, well, flowing. The hands start working together, the fingers are moving elegantly, the brain and the body are all one. This moment can be really fun. "At last! I am able to play this strumming pattern!" However, this is precarious and potentially short-lived. The thing that is dangerous about flow is that one can just as easily move backwards (to mechanics) or forwards (to mastery). Overall, it's a pretty pleasant experience.
There is no better word to describe the feeling of really having a skill other than mastery. Mastery means one doesn't think about how to apply a technique anymore. It becomes part of the guitarist's being and the skill is not going anywhere. I love to teach people strumming because it is very natural for every single one of us on this earth to feel rhythm. We could be 90 years old, pick up a guitar, and probably strum a rhythm. Mastery is ingraining a skill so deeply that we can count on it when we need it.
There is some really great news too: With more experience, this process gets faster. It just takes less time. The more we play and walk towards mastery with the concepts we are interested in exploring, the more available guitar gets overall.