A candle has special meaning in Christianity, it means the light that God gives us to follow the right path even under dark situations. When someone delivers The Word, he delivers light to those who receive it. In this case I placed the light in a mail stamp, making reference to the media it will use. I preferred to make it flat instead of giving it some volume o flashy effect, to respect the nature of a stamp, but I could add a drop shadow, in case your preferences requires some kind of volume I used a script font to give it some kind of ceremonious feeling.