I'm surprised no one has yet brought up this symbolic association for the Lighthouse: The Tower card in tarot. Recall that the lighthouse incorporates a fire, that Jack breaks the mirror and that the tower is on the coast, so the association is almost literal.
From Wikipedia http://en.wikipedia.org/wiki/The_Tower_%28Tarot_card%29
In this manuscript picture of the Harrowing of Hell, Jesus forces open the fiery tower gate of Hell to free the virtuous dead from Limbo.
A tower has just been hit by lightning and is aflame. The top of the tower is crumbling and falling to the ground beneath. In some decks, two figures fall from the top of the tower; in others, the people themselves are on the ground in flames or are themselves hit by the lightning. Sometimes they are simply onlookers to the fire.
Some frequent keywords used by card readers are:
* Chaos ----- Sudden change ----- Impact ----- Hard times
* Crisis ----- Revelation ----- Disruption ----- Realizing the truth
* Disillusion ----- Crash ----- Burst ----- Uncomfortable experience
* Downfall ----- Ruin ----- Ego blow ----- Explosive transformation
A tower on a rocky outcrop, a powerful bolt of lightning, one or two figures falling from the tower, sometimes waves crashing below.
As the Fool leaves the throne of the Goat God, he comes upon a Tower, fantastic, magnificent, and familiar. . . . Inside the Tower, at the top, arrogant men still live, convinced of their rightness. . . . Seeing the Tower again, the Fool feels as if lightning has just flashed across his mind; he thought he'd left that old self behind when he started on this spiritual journey. But he realizes now that he hasn't. He's been seeing himself, like the Tower, like the men inside, as alone and singular and superior, when in fact, he is no such thing. . . . A bolt of . . . lightning slashes down from the heavens, striking the Tower . . . .
. . . . The Fool experiences grief, profound fear and disbelief. But also, a strange clarity of vision, as if his inner eye has finally opened. He tore down his resistance to change and sacrifice (Hanged man), then broke free of his fear and preconceptions of death (Death); he dissolved his belief that opposites cannot be merged (Temperance) and shattered the chains of ambition and desire (The Devil). . . .
. . . The Tower is a card about war, a war between the structures of lies and the lightning flash of truth. The Tower, as Wang points out, stands for "false concepts and institutions that we take for real." . . . . The tearing down of this structure, however painful, makes room for something new to be built.
. . . . False structures, false institutions, false beliefs are going to come tumbling down.