Once upon a time, in a certain town there was a coffin maker who opened and was running a store where he sold the coffins he made himself to the customers in the neighborhood. The popuplation in the town increased day-by-day.
You can lift a dogs ear and say "dogs ear". It would be painful to seperate the dog ear from dog only to quantify it without the rest of the dog. Spiritual experience is part of mundane experience, they amplify one another. Dualism generates these frame of reference which cloud multiple reference points. This is just a metaphor, just one frame of refrence attempting to recognise others.