I think the core question today really was "What is consciousness?" Consciousness, the first phenomenal appearance of knowing, seems to have at least a double nature. It is an object known and a knowing. It is a "distinguishing" and a "relating". Somehow, this double nature proves productive and allows consciousness to go "beyond itself." When it does, we call this process "experience."
The most immediate contrast seems to be between Hegel's account of learning or experience and one wherein some new object is not produced BY consciousness but is instead given TO consciousness. Throughout his writings Hegel emphasizes the need reason has for immanent causes not external causes (in part because an external cause simply begs another question).
At the moment, I am imagining that immanent, dialectical progress is like those illusions that you stare at which become something else just by staring. They become something they already are and the nature of your apprehension changes with the object. Nothing is added, and yet all the relations flip or switch and there is a "new" object/relation to object (always both together!).