This is a visualization technique for communication.
I chose the three moons, because it fits me. You can call it whatever you choose.

For each of the moons, the process is the same.

That process is: Close your eyes and quiet your mind. Picture a point in your mind, see it, feel it, know that it is there. Once you feel it is as real as you can make it. Move towards it in your mind. Let it get bigger, bigger, and bigger still. Until it fills your vision. Let it become your world. your everything. (make certain you have protection in place and have grounded and centered yourself.) While there is no chance of getting lost in the visions, you still want to use precautions.
Once the moon of your choice has filled your vision, feel yourself being drawn into it. And, like a great eye, see it opening to you. Once this is done, you should notice your spirits waiting. You will have an easier time communicating and understanding your spirits, as well as seeing them.

The three moons correspond to the three arts.

Solinari: The White Moon. Affiliation, WA. This will allow you to communicate with your White Arts Spirits.
To call Solinari: When you go through the visualizations, picture the moon as a shining white sphere. The closer it gets, the more 2 dimensional it appears, until it is a shining white featureless disk in filling your vision.

Lunitari: The Red Moon. Affiliation, DA. This will allow you to communicate with your Dark Arts Spirits.
To call Lunitari: Simply use the same visualization as Solinari, however, instead of white, picture the moon as a crimson orb.

Nuitari: The Black Moon. Affiliation, BA. This will allow you to communicate with your Black Arts Spirits.
To call Nuitari: Simply use the same visualization as Solinari and Lunitari, However, instead of white or red, picture the moon as deepest black, it will be a darkness that devours the light, darker than dark.

Note: These are also good ways to contact the godforms of magick.

Please use responsibly

Hmm, what would Servitors fall under?

Alphas would fall under DA, with the rare exception of course.

Wow, I recognize these from Dragonlance. I almost forgot about it, I should try to get character bindings from that world and perhaps a custom realm as well.