ON page 3:
"Clerics: Unlike other professions, the Cleric is a
special case. Instead of 10 Base Lists, he only receives 8
Base Lists. However, the Cleric may select those 8 Base
Lists from any realm or profession so long as the list is
one that reflects the spheres of interest for the deity . . .
"Example: A Cleric of a Sea God would not know Fire
Law, though Water Law would be a good choice."
OK, so in that case, is Water Law treated as a Channeling realm list rather than Essence, since the spells come through the cleric's deity (directly or indirectly)?
Besides the philosophical implications, it would affect the type of armour the cleric could wear (or not) while casting the Water Law spells, stat-based modifiers, and so forth.