大方廣佛華嚴經疏 6.43

6.43

第六門，地謂地智義，謂證淨，即離念超心地也。方便者，教導及入地之由，入住出等也。以無盡辯演無盡法，故能經劫。

In the sixth approach, "stage" means the wisdom of the stages, meaning realization and purification, which is transcending the stage of the mind by leaving conceptualization. "Skillful means" are the guidance and the causes for entering the stages, such as entering, abiding, and departing. Expounding inexhaustible Dharma with inexhaustible eloquence, one can thereby pass through kalpas.