Synthesized answer
The provided passages do not contain information about the practical implications of "Modern Man in Search of a Soul." The title indicates it is a study about man and his spiritual search [1]. However, there is no further detail in the provided text that explains what the practical implications of this study might be.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Modern man in search of a soul by Carl Gustav Jung Description: study about man and his spiritueal search