Christian theme

Here's another passage from The Two Towers that has a very Christian theme:

'Now, lord,' said Gandalf, 'look out upon your land! Breathe the free air again!'
From the porch upon the top of the high terrace they could see beyond the stream the green fields of Rohan fading into distant grey. Curtains of wind-blown rain were slanting down. The sky above and to the west was still dark with thunder, and lightning far away flickered among the tops of hidden hills. But the wind had shifted to the north, and already the storm that had come out of the East was receding, rolling away southward to the sea. Suddenly through a rent in the clouds behind them a shaft of sun stabbed down. The falling showers gleamed like silver, and far away the river glittered like a shimmering glass.
'It is not so dark here," said Theoden.

That passage has such a Christian meaning: Even in the darkest times, there is still hope. For Middle Earth, that hope was Frodo and the Ring, heading to Mordor. As Christians, our hope is in Jesus Christ.