monism
Definitions
A philosophical view that a variety of existing things can be explained in terms of a single reality or substance.
The metaphysical theory that all being may be ultimately traced to or identified with a single principle or nature.
Examples
The philosopher argued for a strict monism, claiming that the mind and body are fundamentally the same substance.
In the context of metaphysics, monism stands in direct opposition to dualism by asserting that reality consists of a single unifying principle.