《谒衡岳庙遂宿岳寺题门楼》是唐代著名诗人韩愈所作的一首诗篇。这首诗描写了诗人前往南岳衡山朝拜庙宇的经历，并在寺庙中过夜后题写于门楼上的即兴之作。通过这首诗，我们可以感受到诗人对自然美景和人文历史的深刻感悟。

以下是这首诗的原文：

五岳祭秩皆三公，

四方环镇嵩当中。

火维地荒足妖怪，

天假神柄专其雄。

喷云泄雾藏半腹，

虽有绝顶谁能穷？

我来正逢秋雨节，

阴气晦昧无清风。

潜心默祷意中事，

仁者必有寿且丰。

苍苔滑石需缓步，

黄叶满山随飘风。

荒凉无人在远道，

日暮沙尘昏短蓬。

接下来是这首诗的翻译：

The ranks of the five sacred mountains are all equivalent to the Three Dukes,

Surrounding and stabilizing the land, with Songshan in the center.

Fire-protected areas are desolate and full of strange creatures,

Heaven has granted divine power to its ruler.

Clouds and mist spew out from half of its body,

Though it has an ultimate peak, who can reach it?

I came here during the autumn rain season,

The dim weather offers no clear breeze.

Silently praying for my innermost desires,

A benevolent person is bound to live long and prosper.

Green moss on slippery stones requires slow steps,

Yellow leaves cover the mountains as they drift with the wind.

Desolate and uninhabited along the distant path,

By dusk, sand and dust darken the short tent.

通过这首诗，韩愈不仅表达了对自然景观的赞叹，也寄托了自己对于人生哲理的思考。这首作品以其深邃的思想内涵和优美的语言风格成为唐诗中的经典之作。