THE WAY OF THE HEART, by Isha Schwaller de Lubicz

On the Way of the Heart the first difficulty is the simplicity of the method, for our modern minds, being trained in complication, can not believe that a simple method will be effective. For this reason many seekers prefer the doubtful procedures of more spectacular methods.
But 'simple' does not mean 'easy', even when, as here, it implies simple-heartedness and a simple technique.
Simplicity of instruction is meant to keep the aim clear, to prevent unnecassary detours and involvements.
Simplicity of thought is exclusion of the irrelevant.
Simplicity of heart means detachement from that which is not essential to our aim, detachement from our previous intellectual riches, prejudices, opinions, and beliefs, thus leaving us free to undertake the quest of Reality with the ingenious open-heartedness of a child lookin upon the world with new eyes.
There can be nothing unspontaneous on this path. Only the limit of our desire will be the limit of our progress.

(from ' The Opening of the Way', 1979)