Jung said that every aspect of your dream is an aspect of you. Your grandpa could be representing the part of you that is unimpressed by your work. So maybe your own perception of yourself is changing, and you're increasingly valuing your voice and what you bring to the conversation when it comes to all that you want to write about. Obviously that doesn't mean that you've got it all figured out, but it sounds like the dream could be a signal that you're on the right path.