A natural question for some is: how is writing related to spiritual growth? Well, most of know that some writings have been held sacred for thousands of years. During phases in any culture where literacy rates are low or books are hard to come by then hanging onto sacred writings or treating them with respect is all that can be taught.
There are people who earn a living writing spiritual books and work along those lines. Both clerics and lay folk do so, although their motives may not always be identical.
People may engage in private writing or professional writing that those doing it do not perceive as being for spiritual reasons.
Privately, people may write about their spiritual lives or about their own lives from a spiritual angle. For those practicing a religion intentionally, who want a means of keeping track of what happens, writing in a journal may help.
A few months ago I read a nice article online by another writer. He wrote of how personal and professional development went together for writers and authors, at least in his own perception.
Many years ago, one of my professors who was also a martial arts Olympic Judoist I took just a few lessons from talked with me about it. I was wanting to write more but treasured the opportunity to take judo lessons from such an esteemed teacher. He was a psych professor and was actually alive despite having been a WW2 Kamikazee pilot. What he told me back then was that it was all about growing as a person and if the writing was more useful to me for that, at that time, then just do that and don’t worry about it.