Final answer:
Jerry's passage through the tunnel is symbolic of rebirth, paralleling the intellectual enlightenment and transition from ignorance to truth as represented in the Allegory of the Cave and other similar narratives.
Step-by-step explanation:
Jerry's actual passage through the tunnel is symbolic of several deep philosophical ideas and can relate to multiple perspectives, akin to the allegorical narratives presented in the provided references. Reflecting on the excerpt that discusses the Allegory of the Cave, we see a journey from ignorance to enlightenment, where the individual experiences an intellectual rebirth by confronting and understanding the true nature of reality versus the illusions they were bound to previously. Similarly, one could draw parallels to the narrative provided about the child in the supremacist commune, in which the passage represents the revelation of truth and the shedding of indoctrination. Given the dove-tailing themes of knowledge, enlightenment, personal growth, and the transition from naivety to understanding, the most fitting answer to the symbolism of Jerry's passage through the tunnel would likely be that it symbolizes rebirth.