In fact, the arguments provided by 影 and 沙 are quite typical in this type of spiritual discussion. They contain a common fallacy: If the world isn't real, then they (in this case, 影 and 沙) are not real either since they are part of this world. If they are not real, what they say can not be authentic.
I once composed a little post about this issue.
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Not saying that I am enlightened. I am not. I just do not think many individuals are enlightened though they act like they are.
