You can see deer when you go deep into the forest, and whales when you swim deep into the sea.

But I can only see you in my dream, and when I wake up, you are thousands of miles away from me.

It's from Li Bai's Unfortunate Visit to a Taoist in Daitian Mountain:

In the sound of dogs barking, peach blossoms are thick.

the deer is seen when the tree is deep, but the bell is not heard at noon.

wild bamboos are green and misty, and flying springs hang blue peaks.

no one knows where to go, and I am worried about it.

A visit to a Taoist priest in Dai Tianshan Mountain is a five-law written by Li Bai, a great poet in the Tang Dynasty, when he was studying in Dai Tianshan Mountain in his early years.

This poem is mainly written by Dai Tianshan, which depicts a colorful picture of a visiting Taoist. Throughout the poem, it is intended to describe the scenery, truly and naturally, and vividly reproduces the beautiful life realm of Taoist paradise. The whole poem is beautiful in style, full of youthful vigor and the spirit of exploration.

Vernacular translation:

The water is clear, echoing the faint barking of dogs; Peach blossoms are flourishing, full of rich dew.

the Woods are deep and secluded, and wild deer appear and disappear. There was silence at noon, but the bell was not heard.

The wild bamboo leaves the blue mist and goes straight through the blue sky, and the waterfall hangs on the green mountain peak.

No one knows where Taoist priests go. Had to rely on Gu Song, send thousands of sorrow.

References:

An interview with a Taoist in Daitian Mountain _ Baidu Encyclopedia