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IMPORTANCE OF MEDITATION:
Since ancient time function of brain and meditation have been linked.
We can understand the relationship between brain activity and meditation by the use of modern technology such as EEG. Basically we are all vibrational beings living in the vibrational universe.
Frequency of vibration determines our experience of reality. The fundamental elements of our physical vibrations are known as brainwave frequencies. Frequencies are measured in Hertz. In brain mapping the frequencies are measured in Hertz which are typically in the range between 0.5 to 60Hertz. According to studies, published in different websites, during meditation a discernible brainwave patterns seen on EEG.
In neuroscience, there are five distinct brain wave frequencies, known as Alpha, Beta, Theta , Delta and Gamma.
To understand the function of brainwave frequencies, which affect our daily life following vibrational patterns are described in brief.
Delta(0.5-3.0 Hz): The deep sleep Wave.
The Delta frequency is the slowest of the frequencies and it is experienced in deep, dreamless sleep and in very deep, transcendental , meditation where awareness is completely detached. Delta is the realm of unconscious mind. It is the Gateway to the Universal mind.
Alpha(7.5-14 Hz): The Deep Relaxation wave:
Alpha brain waves are present in deep relaxation with the eyes usually closed and while day dreaming or during light meditation. It is an optimal time to program the mind for success. It is the Gateway to the Subconscious mind. It heightens imagination, visualization, memory, learning and concentration. It lies at the base of consciousness of human mind.
Theta (4-7.5 Hz): The Light Meditation and Sleeping Wave.
Theta brain waves are present during deep meditation and light sleep including REM dream state. It is the realm of Subconscious mind. It is also known as twilight state as it is normally experienced between Alpha (drift off to sleep)and Delta(arise from deep sleep).A sense of deep spiritual connection and with the Universe can be experienced at Theta. Voice of Theta is silence.
Beta(14-40Hz): The waking Consciousness and Reasoning wave.
Beta brain waves are associated with normal waking consciousness and a heightened state of alertness, logic and critical reasoning. Daily activities are performed in this state. Too much Beta can translate into stress, anxiety and restlessness. The voice of Beta is the little nagging chatterbox of inner critic.
Gamma(40-80Hz): The Insight Wave.
This range is recently discovered. Little is known about this state of mind. Gamma waves with the highest frequency can have a frequency of anywhere between 25 and 100 Hz. Initial research shows that Gamma waves are associated with bursts of insight and high level information processing. Gamma brain waves are fastest brainwave frequency with smallest amplitude. Feelings of Blessings with peak concentration has been reported by experienced meditators.
Neuroscientists believe that gamma waves are able to link information from all parts of the brain-the gamma wave originates in the thalamus and moves back of the brain to the front and back again @ 40Hz.This is the brainwave state of that feeling that any thing can be done.
Now we may draw analogy of the above topic with Mandukya Upanishads, which is shortest among all Upanishads. According to the Mandukya Upanishad, four conditions of Spirit can be described as below.
1)Waking condition: Perception turned outward.
2)Mental condition : Perception turned inward, known as dreaming condition. Self enjoys subtle matter.
3)Deep sleep condition: No desire, no dream. This is intellectual condition. Because of union with Self and his unbroken knowledge, one feels joy. He knows joy. His mind is illuminated.
M~ Deep Sleep
Turiya: The Fourth condition of the Self which can be achieved through deep meditation that corresponds to “OM” as ONE , invisible Word. Self is Whole and beyond bargain.
The world disappears in HIM. SELF is one without a second.
This condition is known as #Turiya#
Please read Mandukya Upanishad in two parts to understand the topic which you will find inline with Brain waves pattern. Links are here:
Any decrease in mind clutter is an increase in our vibrational connection to higher Consciousness.