[update: re-edited] I see a certain affinity between the thought of Bernardo Kastrup and that of Neville Goddard. While their two systems have discrepancies, I believe that Bernardo's philosophy of Analytic Idealism can help explain foundational aspects of Neville's worldview. For example, he offers a rigorously argued case that, just as Neville contends, all is mental, not physical.

Essentia Foundation course presented by Bernardo Kastrup - Analytic Idealism 
B Kastrup (2014) Why Materialism is Baloney

B Kastrup - home page