Vital is related to Important. Importance is derived from Important. Importance is related to Conscience. 
Religion is related to Ritual. Ritual is a type of Practice. Sing requires Practice. you would Sing because Perform. 
Vital <--RelatedTo--> Important <--DerivedFrom-- Importance <--RelatedTo--> Conscience 
Religion <--RelatedTo--> Ritual --IsA--> Practice <--HasPrerequisite-- Sing --MotivatedByGoal--> Perform 