A wonderful metaphor for the One and the many:
Everything is a facet of the one thing. Think in terms of white light shining through a prism to reveal the full spectrum of color perceivable by the human eye: red, orange, yellow, green, blue, indigo, and violet. Each of these colors is part of the original whole and cannot be separated from it—turn off the light source and the colors disappear. Now apply this metaphor to the world around and within you. Everything you see, think, feel, and imagine is part of and never apart from the same Source. We call this Source by such names as God, Reality, Brahman, Allah, One, Krishna, the Absolute, and the Nondual. The list of names is long; the reality to which they all point is the same.
~ Rabbi Rami Shapiro