A: Absolutely not. The techniques are universal. The PDFs typically frame mantras as "sound technologies," not religious dogmas. You can chant to the universe, your higher self, or simply to peace.
You might wonder: "Why a PDF? Why not a video or app?" The answer lies in the nature of chanting itself.
Print the first 10 pages. Do not read the PDF on your phone. Place the printed pages on a small altar or a clean corner of your desk.