From Guild Wars Wiki
- Your character must kneel (/kneel emote) in front of a god statue to summon an avatar of that god. After speaking to the avatar, your character can exchange gold for the blessing.
- Is the only non-Morale Boost blessing that is also applied to all other living party members (i.e. all heroes, henchmen, and player characters). This allows one player character to pay for Holy Blessing for their entire party.