Chakras are Energy Conversion Devices
If you subscribe to the theory that we are not 'human beings having a spiritual experience', but rather that we are 'spiritual beings having a human experience', then you might find this intrigueing.
Ancient texts and traditions of the East consider a human being to be a temple. I will go one step further. I believe and know I AM a temple of light. Part of this ancient wisdom acknowledges an energy system functioning in the body described as being a vortex type apparatus found at various sectors of the body. There are many of them. Some larger than others.
The seven main energy centres are called chakras. Chakra in Sanskrit means wheel or that which revolves. Located along the spine from the 'crown' of the head to the base of the spine these wheels are spinning when viewed by someone who possesses the 'sight'. Usually someone gifted enough to have one of the 'claires' activated and open. They are able to see, sense or hear subtle energies which are undetectable by the average human. The three claires are 'clair'sentience, 'clair'audience and 'clair'voyance.
These chakras or vortices spin and create a funnel effect into places along the spine. They look like cones whose tip originates at the spine and extends out from the body. The top and bottom chakras are vertically oriented (one on top of the head and one at the spinal base) and the other five form from near the navel to the forehead and are horizontally positioned. The five chakras come in pairs one in front and one behind the body.
If ones subscribes to the above theory that we are spiritual beings having a human experience then another part of that premise is that the human body receives energy beamed to them as food like an etherial substance that is being sent by carrier waves to Earth.
These waves of energy frequency are 'captured' by the chakras and function as energy conversion devices. Since the wheels or cones are spinning the outer edge of this funnel is turning at a much much higher rate than at the tip of the chakra. Once the energy waves are collected by the chakra along the outer edge it is then slowed down to a much lower rate where the subtle energy is then converted into matter. This matter we call our bodies.
At some point in time we evolve and move on to gather or collect other experiences but that is another subject.