Please tell me what is good about the word "unconsciously" in the first sentence?

Li Shangyin's poem "Drunk under the Flowers" is as follows:

The first sentence, "You can't get drunk if you look for fragrance", means you can't get drunk if you look for wheatgrass.

Among them, the word "unconsciously" vividly depicts dazzling, physically and mentally drunk, and I don't know why.

However, modality and brushwork are extremely wonderful.