In the name of truth we must state that in synthesis we have three minds.
The first one we can and must call the Sensual Mind. The second we shall christen with the name of Intermediate Mind. The third we shall call the Inner Mind.
Now we are going to study each of these three minds separately and judiciously.
Unquestionably, the Sensual Mind develops its basic concepts via external sensory perceptions.
Under these conditions, the Sensual Mind is terribly crude and materialistic. It cannot accept anything which has not been physically demonstrated.
Since the fundamental concepts of the Sensual Mind are based on external sensory data, undoubtedly, it can know nothing about what is real, about the truth, about the mysteries of life and death, about the Soul and the Spirit, etc.
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The Intermediate Mind is different. It has no direct knowledge of what is real either; it confines itself to belief and that is all.
Found in the Intermediate Mind are religious beliefs, unbreakable dogmas, etc.
The Inner Mind is fundamental for the direct experience of the truth.
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To open the Inner Mind would be the appropriate thing to do in order to remove ourselves from the world of doubt and ignorance.
This means that only by opening the Inner Mind will genuine faith be born within the human being.
Viewing this question from another angle, we would say that materialist skepticism is a characteristic peculiar to ignorance. There is no doubt that learned ignoramuses are 100 percent skeptical.
Faith is the direct perception of what is real, it is fundamental wisdom; it is the experience of that which is beyond the body, the affections and the mind.
We must distinguish between faith and belief. Beliefs are found stored in the Intermediate Mind. Faith is a characteristic of the Inner Mind.
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Obviously, the elimination of undesirable elements carried in our psyches commences the opening of the Inner Mind.
All this means that the aforementioned opening takes place gradually as we annihilate those undesirable elements which we carry within our psyches.
Whosoever has eliminated those undesirable elements 100 percent from within, will also have obviously opened up the Inner Mind 100 percent.
Such a person will possess absolute faith.
– Samael Aun Weor, The Great Rebellion