As is common in medieval literature, the project stems from the desire to improve on the work of others and to offer the complete life of the hero to the public, a theme that is also very present in the cyclical turn that the chansons de geste took at the time.

Alexander is shown as generous, loyal and courageous: he is a protective and giving figure, the emblem of unification of the noblemen under one active and strong voice.

The desire to conquer land and castles is thus reactivated by the desire to conquer the realm of knowledge (the voyage in the sky and underwater), but also the realm of immortality, as is shown by the will of the hero to equal mythic characters such as Hercules and Dionysus who became demi-gods after defeating their mortal conditions by various feat of strength and wisdom.

Alexander will not realize this goal: poisoned by his own men (the "sers felons" Antipater and Divinuspater), as was another key figure of the work, Darius.

The cause of the death of the hero is shrouded in ambiguity: prophetic in nature, it poses the problem of divine retribution, patricide and political mistakes.