The Kundalini or Igneous Serpent of our Magical Powers has a great deposit of solar energy in the region of the navel, in the solar plexus chakra. This magnetic center is very important in Initiation because it is the one that receives the primary energy that is subdivided into ten splendorous radiations. This primary energy circulates through the secondary nervous channels animating and feeding all the chakras. The solar plexus is governed by the Sun. If the student wants to have a vigorous and really objective clairvoyance, in the most complete sense of the word, he must learn to take the solar energy from its deposit in the solar plexus to the frontal chakra.
The mantra SUIRA is the key that allows us to extract solar energy from the plexus of the Sun to bring it to the frontal center. Vocalize in this way: SSUUIIIIIIIRRRRRAAAAA, one hour daily. The result will be the awakening of the frontal chakra in a positive way.
If we want solar force for the laryngeal chakra, we will vocalize the mantra SUERA, like this: SSUUEEEEERRRRRAAAA.
If we need solar energy for the lotus of heart, we will vocalize the mantra SUORA, like this: SSUUOOOOOOORRRRAAAA. Everything is summarized in the great SUARA, where, according to the Vedas and Shastras, the silent Gandharva –celestial musician– is found.
It is necessary to know how to use the solar energy deposited in the solar plexus. It is advisable for aspirants to the Initiation to lie down in dorsal decubitus, feet on the bed, knees up. Of course, when you put the soles of your feet on the bed, your knees remain upward, toward the sky, toward Urania.
In this position, the aspirant will imagine that the Sun’s energy penetrates through his solar plexus and makes it vibrate and rotate, from left to right, like the hands of a clock when we look at it from the front. This exercise can be done one hour daily. The basic mantra of this magnetic center is the vowel U. This vowel can be vocalized by extending the sound, like this: UUUUUU. A well awakened solar plexus animates all chakras of the organism wonderfully. Thus we prepare ourselves for the Initiation.
Samael Aun Weor
The Perfect Matrimony, chapter 19