According to Hegel, self-consciousness (Selbstbewusstsein) is being-for-itself (Fürsichsein), but as an object for another self or consciousness, it is also being-for-another (für-ein-Anderes-Sein). But this "other" is inessential to self-consciousness. The essential reality of that which has being-for-itself is not in an "other," but in self-existence (Fürsichsein). The self-consciousness that is for-itself is independent, but the self-consciousness that is for-another is dependent. Hegel likens the relation between independent and dependent self-consciousness to that between Lordship and Bondage or between Master and Servant. The Lord or Master (der Herr) is the consciousness that exists for itself and is independent of being determined by an "other," but the Bondsman or Servant (der Knecht) is the consciousness that is held in subjection by the Master and depends on being determined by an "other." The consciousness of the "other" is inessential to independent self-consciousness (selbständige Selbstbewusstsein), but it's a determining factor for dependent self-consciousness (unselbständige Selbstbewusstsein).The self-consciousness that is conscious of being divided between the self and the "other" is described by Hegel as "the unhappy consciousness" (das unglückliche Bewusstsein), because it can't reconcile the self and the "other." The undivided consciousness, on the other hand, is a dual self-consciousness that reconciles and unifies the self and the "other." Thus, the object of this undivided consciousness is its own essential being, which is the immediate unity of being-in-itself (Ansichsein) and being-for-itself (Fürsichsein).1
The "unhappy consciousness" experiences itself as internally contradictory and inwardly disrupted, because it's divided between independent and dependent self-consciousness and hasn't yet realized that their unity is its essential nature.
Could other causes of unhappiness, such as personal loss, frustration, disappointment, anger, guilt, social rejection, and stressful personal relationships also be seen be seen as resulting from internal conflicts between a self that recognizes its true reality and a self that doesn't? Perhaps the freedom of independent self-consciousness may also be a freedom from such causes of unhappiness. Thus, Hegel describes Stoicism as an example of the freedom of self-consciousness. He also describes Scepticism as the actual experience of what is involved in freedom of thought.
Hegel further delineates the relation between independent and dependent self-consciousness by saying that self-consciousness exists in and for itself when it so exists for another self-consciousness.2
(This delineation might lead one to think that another's self-consciousness could become an object for one's own consciousness, and that one's own self-consciousness could become an object for another's self-consciousness. But at the same time, one's own self-consciousness couldn't be experienced by another in exactly the same way that one oneself experiences it, nor could another's self-consciousness be experienced by oneself in exactly the same way that they experience it.)
Consciousness may have moments (or stages) of being-in-itself (insofar as it is in-itself), being-for-itself (insofar as its essence is unconditioned universality),3 being-in-and-for-itself (insofar as it so exists for another), and being-for-another (insofar as it's conscious of another). These moments may take the form of Notions (or Concepts) of modes of Being. Being-for-self and being-for-another may have a reciprocal relation, but they may be unified by the Understanding (that the unconditioned universal is the true object of consciousness). Being-in-itself and being-for-another are actually the same,3 insofar as being-for-another becomes (or returns to the mode of) being-in-itself when consciousness becomes itself as the essential being of all reality.
For Hegel, consciousness is spiritual. Self-consciousness is the Notion (Begriff) of Spirit (Geist), which knows itself to be all reality. Reality is also spiritual. Spirit is the inner being of the world, which may assume an objective, determinate form as an object of consciousness and enter into relations with itself.
The spiritual is that which has being-in-itself, and which may have determinations of being-for-itself and being-for-another. In its external relations to itself, it is being-in-and-for-itself.4
Consciousness is also rational. Self-consciousness is Reason (Vernunft), and Reason is the certainty of consciousness that it is all reality.5 Reason is Spirit, and it's conscious of itself. (We can reason about our reasoning, and Reason will reveal the self of self-consciousness.) Consciousness, self-consciousness, Reason, and immediate Spirit that is not yet self-conscious are moments of the totality of Spirit.6
Sense-certainty (sinnliche Gewissheit), perception (Wahrnehmung) and understanding (Verstand) are moments (or stages) of consciousness. Sense-certainty is a pure immediacy of knowledge (that something is). Pure being constitutes the essence of sense-certainty.7 Perception is an awareness that an object is universal and unconditioned by sensation. Understanding is a recognition that the unconditioned universality (unbedingte Allgemeinheit) of the true object of consciousness transcends sensation and perception.
Consciousness is the simple substance of Spirit, and Spirit is (or becomes) conscious of itself as Spirit. The self-knowing Spirit is, in its consciousness of absolute Being, its own pure self-consciousness.8 The representation of the Absolute as Spirit is the most sublime Notion.9 Absolute Being is the self-consciousness of Spirit.10 The Spirit that knows itself as Spirit is Science, and the coming-to-be of this Science is what is described by the Phenomenology of Spirit.11
FOOTNOTES
1G.W.F. Hegel, Phenomenology of Spirit [1807], translated by A.V. Miller (Oxford: Oxford University Press, 1977), p. 120.
2Ibid., p. 111.
3Ibid., p. 104
4Ibid., p. 14.
5Ibid., pp. 139-140.
6Ibid., pp. 412-413.
7Ibid., p. 59.
8Ibid., p. 411
9Ibid., p. 14.
10Ibid., p. 410.
11Ibid., pp. 14-15.