At first I though, how silly. Beginners aren’t good at what they do. Why would I want to stay a beginner? But it’s about keeping the positive attitude beginners have. The excitement to learn. The willingness to take risks, to fail, and to try again.
If it still doesn't make sense, try thinking of it this way: it can be dangerous to think of yourself as an expert.
Once you're huge, you can get away with anything. You almost don't have to try anymore. Meanwhile, beginners are bringing all sorts of genius ideas to life, because they do have to try.
Now imagine how huge the already-successful author would be if they continued forward with a beginner's mindset.
I'm not saying you should always feel doubtful and never enjoy a confident day. Just feel a little better about your doubtful days, because it's part of learning. Stay excited about learning.
Also, I was super surprised to look up "Just Say Om!" and see it only has five reviews on Amazon. I haven't read it since I was a teenager, but I'd still recommend it.