How to understand the artistic conception in lyrics?

In the vast starry sky, only your back is left.

The milky way has condensed into ice, and the memory has crossed the tears.

Imagination can go back to the past and eventually exist in the heart.

Although she escaped, she disappeared into the dream.

Dream of sunrise, I feel you again.

The wind brings your breath, and the moonlight reflects surprises.

So you never left, silently guarding here.

Silence, like a shadow

I am no longer confused, missing is the only bag.

A star in the sky is your wish.

The road ahead is no longer lonely and long, and you and I are no longer watching under the sky.

Sing softly, by my side

Dream of sunrise, I feel you again.

The wind brings your breath, and the moonlight reflects surprises.

So you never left, silently guarding here.

Silence, like a shadow

I am no longer confused, missing is the only bag.

A star in the sky is your wish.

The road ahead is no longer lonely and long, and you and I are no longer watching under the sky.

Sing softly, by my side

I am no longer confused, missing is the only bag.

A star in the sky is your wish.

The road ahead is no longer lonely and long, and you and I are no longer watching under the sky.