to make further progress possible

Each seeker accepts, or invents, a method which suits him, applies it to himself with some earnestness and effort, obtains results according to his temperament and expectations, casts them into the mound of words, builds them into a system, establishes a tradition and begins to admit others into his 'school of Yoga'. It is all built on memory and imagination. No such school is valueless, nor indispensable; in each one can progress up to the point, when all desire for progress must be abandoned to make further progress possible. Then all schools are given up, all effort ceases; in solitude and darkness the vast step is made which ends ignorance and fear forever.