Can you explain the concept of Maya using the examples provided in the source text?

Chapter 50 illustrates Maya as a powerful illusion that deludes even the wise, causing one thing to appear as something else. It is the force that creates the non-existent world. The text provides several vivid examples to clarify this concept. For instance, Maya is like seeing a snake where there is only a rope, or perceiving silver in a shell. It is also compared to a mirage, which is merely the sun's rays. A key example given is the 'Agni-kankan' or circle of fire, which appears when a lit firebrand is whirled around; the fire is real, but the circle is a complete illusion created by motion. This is how Maya's delusion works.