। ॥ ८७ ॥
In plain words
Let your attitude always be non-dual, but never apply non-duality to action. Maintain non-duality across the three worlds, but never assume non-duality toward the Guru.
Close to the Sanskrit
One should always practice non-duality in attitude, never non-duality in action; non-duality in the three worlds, but not non-duality with the Guru.