In some cases, no existing symbol exists to conveniently express an idea.
When that is the case, we can reverse engineer a visual from a written concept.
Take the statement below:
So how do we articulate "reality" as a visual?
We know that nature produces perfect geometric patterns, many of which can be modeled mathematically (see here). Based on this phenomena, we can draw a simplified version (pictured left), and emphasise the narrow/biased view using the iconography of a "target" (pictured right).