While a standalone PDF by that exact title is often sought in the context of his lectures or as part of his book Die Geheimnisse der Gesundheit , Core Concepts of "The Presence of the Immune System"

: Blank views the immune system not just as a biological defense mechanism, but as a reflection of a person's overall "presence" and consciousness.

If you are looking for the full text, it is most prominently featured in his primary publications and platform:

The work is a specific essay or chapter by health consultant and author André Blank , typically integrated into his broader teachings on health, consciousness, and the "InYologie" (the study of Yin and Yang).

: He emphasizes that the immune system possesses an inherent "wisdom" that aligns with the laws of nature. Health is achieved by living in harmony with these natural orders rather than just treating symptoms. Contextual Sources

: André Blank’s publishing house and platform where he shares his research on natural medicine and philosophy. Amazon.de: André Blank: books, biography, latest update

: A central practical pillar of his work involves maintaining a proper pH balance to ensure the "presence" of immune cells is effective.