In Tokyo in the Meiji era there lived two prominent teachers of opposite characteristics. One, Unsho, an instructor in Shingon, kept Buddha's precepts scrupulously. He never drank intoxicants, nor did he eat after eleven o'clock in the morning....
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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.