structural:expansion
Relationship with Hitler

As second in command of the SS and then Reichsführer-SS, Himmler was in regular contact with Hitler to arrange for SS men as bodyguards; Himmler was not involved with Nazi Party policy-making decisions in the years leading up to the seizure of power. From the late 1930s, the SS was independent of the control of other state agencies or government departments, and he reported only to Hitler.

Hitler promoted and practised the Führerprinzip. The principle required absolute obedience of all subordinates to their superiors; thus Hitler viewed the government structure as a pyramid, with himself—the infallible leader—at the apex. Accordingly, Himmler placed himself in a position of subservience to Hitler, and was unconditionally obedient to him. However, he—like other top Nazi officials—had aspirations to one day succeed Hitler as leader of the Reich. Himmler considered Speer to be an especially dangerous rival, both in the Reich administration and as a potential successor to Hitler.

Hitler called Himmler's mystical and pseudoreligious interests "nonsense". Himmler was not a member of Hitler's inner circle; the two men were not very close, and rarely saw each other socially. Himmler socialised almost exclusively with other members of the SS. His unconditional loyalty and efforts to please Hitler earned him the nickname of der treue Heinrich ("the faithful Heinrich"). However, in the last days of the war, when it became clear that Hitler planned to die in Berlin, Himmler left his long-time superior to try to save himself.