By popular demand, I am now switching from energy work to magic. A lot of my magical work is still very much ingrained into basic witchcraft. But I do incorporate my Christian symbols here and there.
Just a note on the distinction between spell casting and ritual. A spell is a series of steps that symbolically represents your request and sends out your intent. It can also be called folk magic. A ritual incorporates a religious dimension. You usually call spirit protectors/quarters and invoke your deities to assist you in the magic that you are about to do. Both are OK. Depends on your need of the moment.
I’ve listed this before, but here is a little reminder of the steps of a basic ritual.
1)      Cleanse the space and yourself;
2)      Call quarters;
3)      Cast a circle;
4)      Invoke deity;
5)      Perform your rite (spell, celebration, main event…) This usually involves the raising of energy.
6)      Thank your deities;
7)      Thank your quarters;
8)      Take down your circle;
9)      Feast.
Step one: Cleansing
There is a multitude of ways to cleanse space. This was usually left to the level 2 students before public rituals. First and foremost, you have to physically clean the space. For a major ritual, I usually add birch leaves to the water to purify and protect the space, blow on the water in the sign of a cross and then a circle and proceed to washing the floors. For a simpler ritual, I just sweep the floor with a broom. I usually draw up energy from the earth let it flow into the broom, so that a nice wave of energy also removes discordant vibrations at the same time as the dust. Once that is done, I stand in the middle of the room, draw up energy from the earth and let it explode through the room to remove all debris of floating energy. I also like to call up a wave of each of the elements, as each one has a cleansing property.
I then proceed to cleanse myself. I find this to be an important step and often it is not emphasized in books on magic. If energy is to flow through me to achieve something, I have to make sure that I am not carrying anything that will tag on to that energy and distort it somehow. I think it is also one of the meanings of doing ritual skyclad. I have never done this myself, but I see how performing a rite in the nude might have that feeling of leaving everything behind. My way of doing that is through ritual washing. There can be many ways to do this. Depending on the ritual, it might be more or less extensive. Most of the time, like when I am about to read Tarot, I just wash my hands and wrists whispering: “Bless these hands and the work they do.” You can wash with an infusion of herbs that you have chosen, strain the herbs and wash with the water. Remember to let the water cool down before doing this (personal experience…) You can also add these herbs to your bath water and let your body and your mind release all negativity. I have used chamomile, birch, lavender, thyme, and mint. It is truly a glorious experience!
When I am about to do a serious ritual, I perform a more formal preparation. I do my ritual cleansing in the shower. I wash my body, consecrating it to my rite:

Bless these feet that walk your path;
Bless this womb, which springs forth life;
Bless this heart from which love flows;
Bless this voice that sings your praise;
Bless this mind that seeks your truth;
Bless these hands that do your work;
Bless this soul that yearns for you.

After I am dried and dressed, I anoint my feet, my heart, my third eye and my wrists with scented oil, usually myrrh in commemoration of my Lord and Lady. I am then ready to enter sacred space.