What's the meaning of this? Or what is the joint prayer that muslims/ Christians/Jews in their respective worship places do called? E.g we need to do a conglomerate prayer to please God?
You may be thinking of corporate prayer:
Corporate prayer is the term used to describe praying together with other people—in small groups or in larger bodies of people.
The term is not restricted to American English.
You may be thinking of congregational prayer
Where a single prayer is said for the entire gathering of people.