What kind of emotion does the poem Pilgrim's Road express?

On the way back,

In the stereo, the sad path of the female singer is clear.

The returning tide in the night sky,

Shuttle motorcycles, electric cars.

It seems like yesterday.

Black numbers,

It's weird now.

Hometown,

Sentimental words.

One moment is the sky, the other is the green space,

One moment the tide, the other the calm lake water,

One moment mixed feelings, the other moment jealousy,

One minute I want to laugh, the next I want to cry.

Unpredictable and difficult to grasp.

Maybe it's eternal,

Black falls from the sky.

Covers all, familiar and unfamiliar.

White and red.

This frozen world,

Not completely,

Endless thoughts.

Memory.