I may just be reading too much into this, but how does the temple work?

It channels 1/turn.  no problem there

Up to twice per round you may have a friendly cleric creature use a full action
to place 1 mana on the temple.  During the deployment phase, if there is two
or more mana on the temple, it may summon 1 holy creature.

Does the cleric have to be in the same zone as the temple to perform the mana action?
Does the temple use its own mana to summon the holy creature, or once 2 mana
is charged is any excess wasted? (would it need 5 mana on it to summon another
Asyran Cleric, or just 2 charged mana, then 5 mana from the main mana pool)
Can the mage use the banked mana?