Hegel in the Phenomenology wants to teach us to be at home in what he calls “otherness”.
Plato was traditionally read as treating “the Others” as inferior to “the One” in the Parmenides, but in the Sophist he explicitly suggested that notions of Other, Same, and Being are equally fundamental.
Hegel goes further, in affirming the essential role of mediation (dependence of things on other things) — as well as the kind of differences in form that “make a difference” practically — in any kind of intelligibility. In the Preface, he sharply criticizes unnamed contemporaries for effectively denying the importance of otherness, either through excessive preoccupation with formal identity or through emphasis on a kind of immediate intuition of God or the Absolute.
Schelling never forgave Hegel for the quip that to insist that all is one in the Absolute makes of the Absolute a “night in which all cows are black”, which has often been read as directed at him. Harris in his commentary argues that the main target of this particular remark was actually the purely formal notion of truth propounded by K. L. Reinhold, who helped popularize Kant.
A bit later, Hegel goes on to denounce “the sort of ecstatic enthusiasm which starts straight off with absolute knowledge, as if shot out of a pistol, and makes short work of other points of view simply by explaining that it is to take no notice of them” (Baillie translation, pp. 88-89). In this case Harris finds it most plausible that the reference really is to Schelling’s Presentation of My Own System (1801), but adds in a note that a good case has also been made that the reference is to J. K. Fries, who apparently talked a lot about the feeling of the infinite.
Hegel shared many of the perspectives of the German Romantics, including a concern for spiritual renewal, awareness of the limits of formal reasoning, and inspiration from Greek antiquity. But by the time of the Phenomenology and for the rest of his life, he supported Kant against Schelling in denying the legitimacy of appeals to direct intuition of metaphysical truth, and had distanced himself from Romantic notions of individual immediate interiority.
For Hegel, Reason finds its home in otherness. This is closely related to the noncontrolling attitude he associates with what he calls “Science” (see The Ladder Metaphor). Hegel’s verbal emphasis on “system” and “Science” needs to be understood in the context of his defense of other-sensitive, value-oriented interpretive Reason against both its reduction to formalism and its effective rejection by Romantics and other proponents of metaphysical intuition.