A becomes an before a vowel or before h mute for the sake of euphony
or agreeable sound to the ear. An apple, an orange, an heir, an
honor, etc.
STYLE
It is the object of every writer to put his thoughts into as effective
f... Read more of A OR AN at Speaking Writing.com
Say "What is dark be filled with light, remove this spirit from my sight."
Before starting place your hand before you, and start the flow of power out of your hand
and then say the words, letting the envisioned blue-white light from your power hand
fill the room or house or any other place that you might be.