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...if he [man] is not to remain this being of the surface ignorance seeking obscurely after the truth of things and collecting and systematising fragments and sections of knowledge, the small limited and half-competent creature of the cosmic Force which he now is in his phenomenal nature. He must know himself and discover and utilise all his potentialities: but to know himself and the world completely he must go behind his own and its exterior, he must dive deep below his own mental surface and the physical surface of Nature. This he can only do by knowing his inner mental, vital, physical and psychic being and its powers and movements and the universal laws and processes of the occult Mind and Life which stand behind the material front of the universe….But this knowledge must be something more than a creed or a mystic revelation; his thinking mind must be able to accept it, to correlate it with the principle of things and the observed truth of the universe: this is the work of philosophy, and in the field of the truth of the spirit it can only be done by a spiritual philosophy, whether intellectual in its method or intuitive. (The Mother, 18 June 1958) <ref>http://incarnateword.in/cwm/09/18-june-1958#p3</ref>

To work for your perfection, the first step is to become conscious of yourself, of the different parts of your being and their respective activities. You must learn to distinguish these different parts one from another, so that you may become clearly aware of the origin of the movements that occur in you, the many impulses, reactions and conflicting wills that drive you to action. It is an assiduous study which demands much perseverance and sincerity. For man's nature, especially his mental nature, has a spontaneous tendency to give a favourable explanation for everything he thinks, feels, says and does. It is only by observing these movements with great care, by bringing them, as it were, before the tribunal of our highest ideal, with a sincere will to submit to its judgment, that we can hope to form in ourselves a discernment that never errs. For if we truly want to progress and acquire the capacity of knowing the truth of our being, that is to say, what we are truly created for, what we can call our mission upon earth, then we must, in a very regular and constant manner, reject from us or eliminate in us whatever contradicts the truth of our existence, whatever is opposed to it. In this way, little by little, all the parts, all the elements of our being can be organised into a homogeneous whole around our psychic centre. This work of unification requires much time to be brought to some degree of perfection. Therefore, in order to accomplish it, we must arm ourselves with patience and endurance, with a determination to prolong our life as long as necessary for the success of our endeavour. <ref>http://incarnateword.in/cwm/12/the-science-of-living#p5</ref>