Your barding needs a special form of blessing, one from an
appropriate spirit. In Dire Maul is such a spirit, the
Ancient Equine Spirit. It is currently held by a corrupt
treant, Tendris Warpwood. Pass judgment upon this foul
beast, <name>.
Know this - freedom alone is not enough. You must soothe
the spirit before receiving its blessing. For that, special
horse feed is needed. Travel to Southshore first and
speak with Merideth Carlson on this... and prepare for more
sacrifice.
Progress
The Ancient Equine Spirit looks at you expectantly, as
though it wants something from you.
Completion
The Ancient Equine Spirit accepts the offering of the
Manna-Enriched Horse Feed, nuzzling the container as
it helps itself to the special oats and grains. After
it has eaten a little, it looks at the barding you possess
and positions itself as though it wants you to place it
upon its back...
The paladin must complete both the Censer series, and the Barding series, after which he is offered the Scryer quests. The two series are otherwise independent.