"The spiritual life is part of our biological life. It is the 'highest' part of it, but yet part of it." Y/N?

To explain a bit further, the quote is in a book entitled, _What We May Be_, which is about something called psychosynthesis. In a nutshell, as I understand it, psychosynthesis has to do with integrating the many sides of one's personality, so that they work together and aren't self-contradictory. As for this quote, and its application in _What We May Be_, I'd say the idea is that the spiritual life has to do with the super-ego or "superconscious," which is another term the author uses. As I understand it, the idea is that when you have any of a variety of peak experiences or unusual inspiration, it could be that you are accessing the super-ego or superconscious, which is part of you having extraordinary ability to organize and clarify data (and other abilities), but normally inaccessible in ordinary consciousness.