Excuse me, what are these four words? What do they mean? Who is the signature? Is there such a person? thank you

Short answer: fugue

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Identify the seal handwriting; From the right.

Meaning refers to traveling to a certain place in imagination or dream, not in a certain place.

Liu signature

Author Liu, painter, born in 1949, is from Feicheng, Shandong. Good at landscapes, calligraphy and seal cutting. He is now a member of China Artists Association and China Calligraphers Association. His works have participated in many national painting and calligraphy exhibitions and won awards.

Online dictionary seal