It was intended to be read by his son, Martin Müller, with the objective of helping him to understand certain aspects of the decisions he made in his life.
[2] In this line, it is explained that Müller was particularly engaged with Heidegger's ontology, and this is why he focuses his historical analysis in the notion of authenticity.
He also argues that 1933 Heidegger became Rektor of the University of Freiburg owing to the aid of the SA and specially that of its co-founder and leader, Ernest Rohm.
Müller explains that he obtained his Nazi Party membership right after hearing Heidegger's inaugural address, known in English as "The Self-assertion of the German University".
Such an image produced a deep impact in Müller's conscience, and he started to feel profoundly guilty about the death of that single man.