During July and August, the constellation Leo has a pronounced influence on us. Since Leo is related to our heart, during this time we perform spiritual exercises for the heart.
"The heart is the most sensitive organ of our organism. The most remote seismic movements of the world are registered within the fine membranes of the heart. The heart is the sacred temple of our Inner Master. The Inner Master speaks to us through intuition (feelings, perceptions, hunches). If humans obeyed these intuitions, they would live without problems. When human beings rebel against the voice of their Inner Master, they create problems for themselves.
"So then, we must especially practice inner meditation during the sign of Leo. I advise my disciples to practice inner meditation during those moments in which they feel more predisposed to sleep. You must totally dominate the untamed horse of the mind. You must control all possible reactions of the mind before the objects and sounds of the physical world. The Inner Master is not the mind. The Inner Master is not emotion; the Inner Master is not the will; the Inner Master is neither the consciousness nor the intelligence. The Inner Master is the Divine Witness. The Inner Master is the Being. The Inner Master is the Innermost; therefore, while immersed in deep inner meditation, say: “Not this, not this, not this. “I am He, I am He, I am He.” Be demanding with your Inner Master. He must teach you the most ineffable things. If your concentration is intense, then you will penetrate the marvels of the cosmos and will learn things which are impossible to describe with words. Vocalize the vowel “O” daily during the sign of Leo to awaken the heart chakra." —Practical Astrology by Samael Aun Weor