"Seekers maintain that blood iteself is the 'soul' of life... In the mindset of most Vol cults, creatures that know nothing of blood - constructs, plants, oozes, and the like - are thus removed from true divinity. Vol doctrine holds that blood truly is life, and that without it, there is no real life at all...
"The high position of undead within the church might surprise those outside the faith... The Seekers believe that the intelligent undead have made this terrible sacrifice to overcome mortality and to serve the sect... The undead are champions of the church, guiding the people of Vol to their true destiny, but few who follow the faith would make that terrible choice." - Faiths of Eberron pg 75-6
Also see Keith Baker's dragonshards and his posts in the old "Ask Keith" threads on the WotC boards.
"The high position of undead within the church might surprise those outside the faith... The Seekers believe that the intelligent undead have made this terrible sacrifice to overcome mortality and to serve the sect... The undead are champions of the church, guiding the people of Vol to their true destiny, but few who follow the faith would make that terrible choice." - Faiths of Eberron pg 75-6
Also see Keith Baker's dragonshards and his posts in the old "Ask Keith" threads on the WotC boards.