Writing is an incredible tool for personal development.
We often make the distinction between what we say and what we do, but writing is often the first step towards adopting a maker attitude: Ryan Hoover theorized what made the success of Product Hunt in a blog, Basecamp rose to fame by blogging, and countless writers before you shaped the world into what it is today.
There are many reasons why. First, you are what you write. According to a scientific study, writing down your goals raises by 40% the probability of you achieving them. Having a resource you can refer to makes you accountable, and since we are wired to stay away from pain, we are less likely to go back on our word to avoid being shamed. We can use this trick in many situations, such as giving advices to make us more likely to follow them ourselves.
Second, our persona is mainly the reflection of our work. Even unconsciously, we make assumptions about people by the way they look, and more generally, by the way they express themselves. If I want to know more about someone, I google them and I read what they wrote. Failing to understand the importance of your e-reputation is a missed opportunity to improve your quality of life: learn to present yourself and let your personality shine through your writings.
Finally, writing is an unavoidable part of the learning process. Writing a blog post is a great way to be proactive in the way you learn, which will in turn have a deeper impact on your memory.
For all these reasons, writing greatly benefits us in our quest for transcendence: tell me who you want to be and I'll tell you what to write about.