It sounds like you're looking for a of "Prières puissantes de la Kabbale" (Powerful Kabbalistic Prayers), and you also find the topic interesting.

Here’s a direct, honest answer to help you navigate this request safely and effectively. A single, famous free PDF titled exactly "Prières puissantes de la Kabbale" is not widely available as a legal, public-domain download. Most complete books on this subject (e.g., by Henri Serouya , Marc-Alain Ouaknin , or Yehuda Berg ) are still under copyright.