Translated from the Japanese, 'Reiki' (pronounced ray key) means simply 'Universal Life Energy' or 'Universal Life Force'.
The Reiki ideals are as such:Just for today, I will let go of anger.
Just for today, I will let go of worry.
Just for today, I will give thanks for my many blessings.
Just for today, I will do my work honestly.
Just for today, I will be kind to my neighbour and every living thing.
So really when we talk about channelling or receiving Reiki, we actually recharge or power up, drained or low batteries through a never ending source of energy. Low energy can occur for many different reasons and everyone can find him/herself in such a place at some point, be it through stress, bereavement, illness and so on.
In my mind Reiki is a life force which flows through all of us and when it flows freely will keep us healthy and alive. It is also known for instance as chi, Holy Spirit and many more.
When Reiki does not flow uninterrupted and is blocked the body is in a state of imbalance where the disruption occurs. If this is not being addressed the imbalance will travel to other areas, so an emotional problem can, when not corrected, resonate to the physical body.
Maybe I can explain it like this: when we feel that we are stressed and we have to carry the world on our shoulders, but we are not addressing the problem, we will end up having tense shoulders which can lead to headaches and so on and so on.
I will put myself out here and say that most physical ailments have their beginnings in the emotional body. So negative feelings and emotions can cause blockages in the flow of energy.
There is a good likelihood that, when you receive Reiki, you will have physical signs of the energy flowing (heat, tingling, cold, numbness) but in many cases you might not. Both scenarios are normal and it does not mean that Reiki is not flowing right and that it is not being received.
When there are blockages and they are being released, you might find yourself overcome with emotions and feel like crying, or you might even experience a runny nose.
First and foremost though, I need to make clear that Reiki can be used in conjunction with counselling, prescribed medication or for instance physiotherapy etc., and not instead of it.It is very likely that you will feel sleepy after a Reiki treatment and once you retire you will find that your sleep is much deeper.