I hear a hundred times about charkas, when in use of Third Eye, meditating, telekinesis, lots of psychic abilities, mostly. But I really want to know what exactly charkas are. I'm guessing it's some form of energy in our bodies or something. Thanks.

Chakras are energy points in your body. There are seven chakras: root, sacral, solar plexus, heart, throat, third eye and crown. Also there is theory that aura is the eight chakra. Each of them have own meanings and colors, each of them are in specific places and controls certain things in your body and mind.

Thanks, Haddock. Is there a meaning for each one?

Yep. Root chakra is the chakra most related to our survival instincts and our cravings for materialism. The solar-plexus chakra is related to our connection with others and sexuality. The solar-plexus chakra is related to our will power(strong will and self esteem). The heart chakra is the chakra that connects the lower 3 chakras(root, sacral and solar-plexus) with the higher ones(the throat, third eye and crown) and it is the chakra related to love and empathy. The throat chakra is the one for expression of what you feel(an artistic inspiration or the urge to speak the truth and what you feel). The thrid-eye chakra is the one responsible for insight(being aware of yourself and what is around you at a deep level. Which leads to the increasing of psychic abilities). And the crown chakra is about understanding/spirituality(to realize everything as they are and to have a close connection with the divine/higher self/God).
That's the simple explanation and is enough to understand the basic concept of chakras. But there can be a lot more to it. Haddock already mentioned the Sun(8th chakra) which is said to be the aura.

First off: Thank you, IndigoTeen.
Second: I watched Mark Mauvais's video update yesterday about charkas. It seems that he answered my question on this the whole video. I feel blessed.

Teresa Kinsley wrote:

But I really want to know what exactly charkas are. I'm guessing it's some form of energy in our bodies or something.

Chakras are energy centers (aka etheric organs, etheric energy discs, information centers/vortexes) through which your Kundalini energy flows and feeds your body its data. They're constantly evolving.

There are main 7 chakras inside your body. You can think of them as separate intelligent entities which are dealing with specific reality aspects on behalf of your whole being. The first 3 are survival, sexuality and perceptual feeling (emotions), the 4th is the heart-center of compassion and connectedness to all things, the 5th is the throat chakra which relates to speaking, the 6th is the third eye and vision, the 7th (crown chakra) opens to the knowing that one's identity goes beyond the physical form.

There are few minor chakras (such as hand or leg chakras). And there are some subpersonal chakras outside your body which are like communication channels with outside realms (connection with Earth, Solar system, etc.).

So in total there are 12 chakra centers (7 inside, 5 outside of the body), each corresponding to twelve spiral strands of DNA. Some of them were disabled for a purpose in order to control the humanity by "gods", however DNA activation technique can activate corresponding (disconnected) chakras. Once activated, they begin to spin. If you activate all, incredible flood of new energy will come and you can bring your brain into full, quantum computerlike function.