Songwriting and crocheting

I wrote a song on my way home on the subway. That's the first time I've written a song in a few years. Within the last few weeks I've also crocheted my first project in a few years as well as knitted my first project ever. Am I experiencing a resurgence of creative energy? What is up with all this song- and yarn-crafting? All I can say is that writing a song and crocheting a case for my blackberry are two of the most satisfying things I can remember doing in some time.