All Is One in Theology

This page is the CodyCross answer for the clue below from Daily Routines, Group 1850, Puzzle 2 (Visit a Restaurant).

Question is: All Is One in Theology

and the answer is: MONISM

Word Meaning:

MONISM — (philosophy, religion) The doctrine of the oneness and unity of reality, despite the appearance of diversity in the world.

Definitions from Wiktionary.