How might "I am God" creep in?


In the Christian Era you had matter to meet as your mind. In the Christian Science Era you had malicious mental malpractice to meet as malicious argument and everything coming to you as hypnotic suggestion. Today, as the "Last Days," you have the culmination of all evil, but not as matter or argument to be refuted, but as actually, the presumptuous claim, that you are God, very Mind Itself. This last infirmity of sin, this iniquitous blasphemy cannot be met with arguments, it can only be met with pure realization, being lost completely in the Allness of Mind. (p. 994, CCT, H. W. Eustace)


How might the presumptious claim enter in in the practice of CS? Elsewhere?