This skill is called Speak Up, provided by the Cameron K. Gallagher Foundation. Here are the currently available features, and for those that have an Echo Show, videos will be played.
You can say, give me a quote and I will read an inspirational quote. You can say, play Cameron's song and I will play a song that is a tribute to Cameron Gallagher. You can say, give me a moment of mindfulness and I will help you relax.