I got some more insights from playing around with this, and I wanted to update my rituals involving it. Here are the latest instructions:
To summon the Spirit for contemplation, prayer, and consultation:
1- Light the center charcoal while calling the Spirit into it to represent the element of Air. Offer Frankincense.
2- Call in the other five elements (the Wu Xing), starting with Wood at the top, then onto Fire going clockwise (lighting the candle as you call it in), then Earth, Metal, and finally Water. Say "Amen".
3- Continuously offering Frankincense to the Air charcoal, keep the channel and communication with the Spirit open and flowing as you contemplate.
To create a candle spell with this invocation open:
1- Having already opened for ceremony, consecrate your candle's intention by offering tobacco to the charcoal and praying to the source you have in mind to work with. Say "Amen" and "Blessed Be".
2- Placing the candle below the altar, light the candle and call in the source you want the flame of the candle to work with into its fire... say "Amen" and "So Mote It Be". It's best if you let the candle burn itself out - I use tea lights because they're cheap, easy to obtain, and only burn for a few hours, but it's enough for a reaction.
(The ritual space is dismissed when you put out the Fire position candle, and/or dispense of the charcoal, if it is still lit - I recommend dumping lit charcoals into a vessel of water. The Fire position candle does not need to remain lit for the candle magick of your intention candle to continue, but the intention candle's fire must remain lit for the magickal intention to carry well to the Spirit.)
I'm going to experiment more with this ceremony I invented and see where it takes my magick!
Video tour of this altarspace
Video example of use of this altarspace
-Saraƒin
UPDATE: Just some notes, if I didn't post them earlier, about what I used for literal representation of the Wu Xing elements:
Obviously (Holy) Water and Fire were used literally for those two elements, but for the other three, it seemed some things were better suited for representation than others. I used a bit of sacred smudge from a native friend for Wood, along with twigs of tobacco plant, tobacco being extremely sacred. For Earth, I had some crystals and felt called to put Fluorite, Malachite, and Agate, but later got that Garnet should replace Agate. I also added soil from a plant and sulphur powder. As for Metal, I added pieces that were made of copper, iron, nickel and gold, which was what I sensed might have spiritual relevance for the power I'm calling in. (I got this information from channel, so as the channel improves, so might the recipe for how to lay things out.)