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The major chakras or energy centers not only control and energize the internal organs but also control and affect one’s psychological conditions. The major chakras have corresponding psychological functions.

Forehead Chakra

This chakra controls the nervous system and is the center of lower buddhic or cosmic consciousness. It is the center of lower intuition or wisdom. The activation of the forehead gives one access to the spiritual world.

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Crown Chakra

This chakra is located at the crown or at the top of the head. It controls the brain and is the center of higher buddhic faculty or higher cosmic consciousness. It is the center of higher intuition. The buddhic faculty, when fully developed, manifests as "direct knowing or perception." It is knowing without having to study. What is learned through the buddhic faculty in a few minutes will require weeks, if not months, to put into words. A person with only a developed mental faculty will have to plow or muddle through the problem; whereas another with even only a partially developed buddhic faculty has a quick overall grasp of the problem and its possible solutions. The mental faculty is then used to check the validity of the solution and to "materialize" it.

Unfortunately, our present educational system does not encourage the development of the buddhic faculty or the direct perception faculty on the grounds that the solution or conclusion was "not rationally" arrived at. Direct perception or intuition is not logical or rational. The truth is buddhic faculty or intuitive faculty is beyong logic. It transcends logic and the rational mind.

The mental faculty can be compared to a blind man, while the buddhic faculty can be compared to a person who can see. In order for a blind man to have an idea of the shape of an elephant, he has to spend considerable time touching the elephant and trying to deduce synthesize the data gathered, while a person who can see will immediately know the shape of an elephant. Understanding a subject matter through the buddhic consciousness is through immediate and direct comprehension or perception and not through a long period of study or through the process of inductive or deductive reasoning.

The crown chakra is also the center of divine love or universal love. It is the center for soul realization or illumination. It is the entry point of the spiritual energy into the body. If the crown chakra is highly developed, a "golden halo" is produced around the head. Saints of all religions have golden halos on their heads.