What are the motifs in On Writing: A Memoir of the Craft by Stephen King?

Stephen King admits that at one point in his life, writing was his life. Stephen King illustrates this idea by discussing this massive desk he once owned. Stephen King has always dreamed of having a massive desk in the middle of his office on which he would write. However, when Stephen King recovered from his addiction, he discovered that he had made writing his life. While writing was important to Stephen King, there was a life going on around him that was just as important. Stephen King got rid of that desk, created a casual sitting area where it had sat, and placed a smaller, more humble desk in the corner of his office, thus placing writing further down on his list of priorities.