create_monastic_decision_effect

create_monastic_decision_effect = {
	save_scope_as = root_scope
	custom_tooltip = create_monastic_order_decision_effect_message_tenet
	custom_tooltip = create_monastic_order_decision_effect_message
	if = {
		limit = {
			OR = {
				has_realm_law = church_authority_1
				has_realm_law = church_authority_2
				has_realm_law = church_authority_3
			}
		}
		custom_tooltip = create_monastic_order_gain_hook
	}
	custom_tooltip = create_monastic_order_decision_effect_message_warning

	change_spiritual_fulfillment = medium_spiritual_fulfillment_value
	stress_impact = {
		zealous = minor_stress_impact_loss
		impatient = miniscule_stress_impact_gain
		patient = miniscule_stress_impact_loss
		calm = miniscule_stress_impact_loss
	}

	if = { # If you have no valid barony this will throw errors when you open the decision - we add this check to avoid that 
		limit = {
			exists = scope:title
		}
		hidden_effect = {
			scope:title = {
				ordered_county_province = {
					order_by = {
						value = 0
						if = {
							limit = {
								OR = {
									terrain = hills
									terrain = mountains
									terrain = desert_mountains
									terrain = desert
								}
							}
							add = 2
						}
						if = {
							limit = {
								OR = {
									terrain = forest
									terrain = drylands
									terrain = wetlands
									terrain = jungle
									terrain = terraced_hills
								}
							}
							add = 1
						}
					}
					limit = {
						has_holding = no
						has_ongoing_construction = no
					}
					begin_create_holding = church_holding
					save_scope_as = province
					set_variable = {
						name = monastic_order_capital
						value = root.faith
						years = 50
					}
				}
			}
		}
	}
	trigger_event = holy_order.2009
}

As written in game/common/scripted_effects/00_holy_order_effects.txt.