Crystals as Meditation tools
"In a crystal we have the clear evidence of the existence of a formative life-principle, and though we cannot understand the life of a crystal, it is none the less a living being. There may be, besides crystals, other such individualized, material systems of beings, perhaps of gaseous constitution, or composed of substance still more tenuous. In view of this possibility, nay, probability, we cannot apodictically deny the existence of organized beings on a planet merely because the conditions on the same are unsuitable for the existence of life as we conceive it. We cannot even, with positive assurance, assert that some of them might not be present here, in this our world, in the very midst of us, for their constitution and life-manifestation may be such that we are unable to perceive them" Nikola Tesla
To cut through the New Age "fluff" surrounding crystals and stones, and get directly to the point I would like to address their use as tools of Meditation. See, Consciousness is not only what or why we experience, but what creates the very fabric of reality, and all things. Crystals as Tesla said, and as Marcel Vogel touched upon, are "Beings" in the beginning stages of evolution, manifestation of material consciousness. (Evolution of consciousness in this material realm begins in the mineral / crystal world, then to plants, Single cell organisms, Insects, Fish, Birds, Animals, Humans).
Crystals manifest in such amazing structure and forms, each having a signature, a vibrational rate unique to their variety / species. Quartz has been used for this purpose in electronics, watches, radios, etc because of its Piezoelectric properties, the ability to put out more energy than is transferred through it. Etc. Crystals have the ability to transmute and amplify energies, including the bio-electrical energy field of humans or the Chakras / energy centers. When meditating with crystals and stones, we are by "thought" ; intent / direction of the will, working to "raise" our vibration, from the normal mundane state, to "higher" awareness. Crystals can assist as amazing tools to focus the mind and assist in the meditative process. However, all the real work is done WITHIN. There are many ways to the same path, with a variety of tools to help us along the way. Crystals have an effect on their direct environment as well. Especially relating to Electromagnetic energy from technology, etc.
When meditating with different stones experiment with receiving and sending, Positive & Negative, etc. The non dominant hand is the receiving / negative hand, while the dominant hand is for sending / positive charge. Usually Right & Left, also symbolizing Sun / Moon, Yin / Yang, Male / Female, the hemispheres of the brain.
Experiences are relative and subjective to the observer - to certain degress, much more than that. Depending on your own awareness of what are referred to as "subtle" energies, depends on your experience. Also your ability to enter the meditative state and how deep you can go within, which can take time to master. Daily Meditation, applying of all things learned are a good place to start, to integrate this as a way of being, bringing together the mental / spiritual / physical balance also plays a huge role.
Direct experience is the greatest teacher. Crystals can have a profound effect on our imagination (which Einstein said was more important to knowledge), and on our consciousness the more we open our minds and work with them directly. Now, this is not to say Crystals will change your life instantly without doing the work to change or transform, or are a quick fix or cure for anything. But they will, if used properly, and with an open mind, assist us in clarifying things within ourselves, that lead to great transformation. After all, every experience, everything you feel, everything you perceive or think to be true occurs WITHIN and then plays out, from the realms of the subconscious to the ego mind, and if enough energy is given to it, it will manifest in the material realm. Good or bad is relative, and is dependent upon what views we hold in our minds.
I have had amazing experiences myself over the last 11 Years of working with Crystals & these amazing stones. There are stones I feel "nothing" from, there are others that hit my instantly, as though the universe itself reached out to zap me. It is a blessing to work with them everyday in this manner.
I am a little different in my approach to Crystals & energy, than most New Age writers or crystal dealers, many who will write only the best information or even make up info in order to convince you of something obscure or outright deceptive in order to sell you something. This is beyond that, this is about empowering and providing real information to assist those who are eager to do the serious work of awakening, regarding consciousness, meditation, etc. I hold true the principles of the ancient Hermetic & Alchemical Path which lays waste to all that is not of light and truth, it destroys dogma and fantasy.. The path is not "easy", and the further one journeys away from the matrix we have been sold, the more it becomes clear that the truth is not a cute little puppy waiting to snuggle you, it is instead transforming and destructive to illusions and preconceived notions, but alas, it is but the true path to freedom, to understanding who and what we are.