Phenomenology of Spirit: §143
This ‘being’ is therefore called appearance; for we call being that is directly and in its own self a non-being a surface show. But it is not merely a surface show ; it is appearance, a totality of show. (Miller trn.)
For that reason, it is called appearance, for being that is immediately in itself a non-being is what is called seeming-to-be. However, it is not merely a seeming-to-be but rather an appearance, a whole of seeming-to-be’s. (Pinkard trn.)
From this quote, particularly from Miller’s translation, one can see a very interesting consequence from the concept of appearance, and that is that appearance as appearance in truth hides nothing underneath. In opposition to the Kantian problematic of our knowledge being limited to appearances and unable to access things-in-themselves, Hegel strongly and decisively argues the opposite: it is only because of appearances that we have access to things-in-themselves. The very fact and concept of an appearance is already the lifting of the veil, for in positing an appearance as that which is before us we necessarily posit that there is such a thing-in-itself hidden behind it as the reality which has shown itself to us as a moment of appearance. The essence of things which supposedly is veiled underneath momentary and ever vanishing appearance is in the end the enduring still image of this very vanishing as a whole, hence the totality of show. In this totality of show the essence of things fully shines through, every moment of appearance revealing one more moment of the intelligible rational principle which springs forth as this appearance, a principle only accessible to beings with the capacity to reason.
Though there is indeed a veil, this veil is the very thing which reveals the unseen that underlies it. Appearance is not the dark veil of space hiding essence underneath, but is instead the illuminating light which brings things-in-themselves into relation with us. In truth, appearance is not the total veil of a finite limited mind that keeps us apart from things-in-themselves as Kant thought, but rather the key to the total revelation of things-in-themselves or essence.