One of the best ways to understand what the resurrection business is about can be found in this excerpt:

"As concerning the Seven Spirits who are Kesta, Hapi, Tuamutef, Qebhsenuf, Maa-atef, Kheribeqef and Heru-khenti-en-ariti, these did Anubis appoint to be protectors of the dead body of Osiris" and then said Anubis "Come thee hither"

The allusion is that these words "Come thee hither" were once spoken by Ra to Osiris to bring him into the world, to create him in his word
(gettin' any deja vu?) and that by speaking these words Anubis brought into the world these 7 Great Spirits who, in turn, spoke the word to bring back Osiris from death.

The 7 Great Spirits have two roles, though it's... A bit tangled. Here goes:
Firstly, their role is practical, you see each of the 7 is a specific task in the embalming process. Even more specifically each of these Spirits is a canopic jar (clay jar you seal a specific organ inside of).
Second, their role is metaphysical: By making the Preparation for Reincarnation, Reincarnation occurs.

Okay let me explain that in another way: You don't "Do" a thing. You allow it to be possible and it will happen of its own accord.
You don't "Create" a world, you create the set of circumstances to allow for it and inevitably it will occur.

Thus Anubis is less an active agent upon the world but shares more with the Grim Reaper - acting through mortals with agency and on the other hand influencing the world and fiddling with circumstance to make long-lasting changes.

By learning what actions produce what results, you may reproduce the result simply by repeating the actions in the correct order and with the correct input. This is the very foundation of ritual both spiritual (take any religion) and non-spiritual (scribbling on a piece of paper to accept a job):
Because this was done before and it meant this, if you do thus now it will also mean the exact same thing.
That's the argument and, to a great degree, why I have come to be myself Anubis.
Clumsy wording intentional.