Anchor is a physical place to a creative state of mind. It should be a place that you don't frequent daily, but which is easy for you to reach. Ideally, it should be a blank spot that doesn't have yet any other meaning to you and an environment where you thrive (e.g. if you're a nature person looking for a space outdoors). Maybe you already have one in mind? Make this place your creative sanctuary by visiting it when you want to elaborate on ideas or perform some other act of creativity. Repeat this as much as you like, and at some point your brain will associate this place with a creative state of mind. Go there to search for inspiration.