The path forgotten?

"the passage is forgotten"

Irigaray seems to argue that "the passage" from ignorance and knowing has been somehow glossed over by readers of Plato's Cave, proceeding to "explain" what this passage actually is and what its purpose is. But isn't the passage, from the veiled and illusory images seen in the cave to the knowledge of reality in the light of the sun outside the cave, isn't this the road that anyone who studies philosophy or related sciences walks? Even if we are unaware of it, is not everyone in the world somewhere between the depths of the cave and the light of the sun, on this forgotten path, with no one at either extreme?
It may be that I am misunderstanding something crucial, but I do not really get Irigaray's point on this matter.