The same is true, if you leave your comfort zone on a regular basis. It is still not comfort, but in a way, you know what to expect. You know, that you can cope with it and you know that you will learn valuable knew skills or grow as a human being.
Having been born transgender, the path to my authentic self took me out of the comfort zone many times. At each step, it took me some time, to catch my bearings, to realize, I will be okay. I am okay. Likewise, in my professional life, I pushed myself forward for more work, more responsibility. First, it was to suppress my transgender identity, later, it was because I loved learning new things, to engage and to develop others.
I got my first leadership role at age 23. The office manager had retired. At group headquarters, everyone warned my boss and mentor: She's too young. But he wanted me and I wanted the job, because I feared, the opportunity would be gone, if he hired a younger successor.
I was too young, in a way. I had little life experience and I had lead people from my age to 63 years old. I am still grateful to especially the more experienced employees for their patience and their feedback. You are never finished as a leader, but by the the time I was 26, and my high school classmates that had gone on to university graduated, I had already learned a lot.
My personal and professional trips outside the comfort zone have made me the person I am today and standing still is not an option for me anymore (as my BFF can attest ;)).