Blessings be upon thee, O creature of light! Thrice blessed little herb! Herb o' grease, with thy waxen stem and thy blossom of flame! Thou art more potent against spells and terrors and the invisible menace than fennel or dittany or rue. Hail! antidote to the deadly nightshade! Blossoming in the darkness, thy virtues are here eased and quiet sleep. Sick people bless thee, and women in travail, and people with haunted minds, and all children.
Taken from: http://www.sacred-texts.com/bos/bos658.htm