What are "borrowing scenery" and "opposing scenery"? What are the similarities between the two?

Traditional techniques of gardens in China. Consciously "borrow" the scenery outside the park to the scenic spots in the park.

Opposite view: in the garden, or on pavilions, terraces, buildings, pavilions, you can enjoy the halls, mountains, bridges and trees ... or in the hall and bridge corridor, you can enjoy pavilions and pavilions. This method (or gardening method) is called antithesis.