Hi Alan,
members,

There are some important questions in that list.
I wonder what the world would be like if everyone asked some of those questions even once a day and then sincerely sought the answers?
Two teachers who's works I rely on for inspiration and information have some material available on the soul.
I do not know if you are familiar with them or not.
1) Sri Aurobindo has a nuanced 3 part definition of what we generally call the soul. These links are from a follower of his:
http://www.kheper.net/topics/Aurobindo/Jivatman_Spark-Soul_and_Psychic_Being.htm...Some quotes on the soul by Aurobindo can also be seen at this link:
http://www.kheper.net/topics/Aurobindo/Psychic_Being.htm -------------
I would further recommend Aurobindo's writings, such as what is considered his magnum opus, "The Life Divine", which is pretty much a comprehensive spiritual cosmology, with deep, quite thourough discourses on virtually every spiritual subject, including the 5 or 10 subjects regularly discussed here at this site. (ignorance, evil, heaven/hell/realms/organization of reality, karma, reincarnation, also 'supramental' transformation/descent, which is the same as what new-agers call 'ascension' etc. etc.)
This link
http://www.aurobindo.ru/workings/sa/index_e.htm will provide a list of Aurobindo's books, including "The Life Divine" among them. I suggest looking over the table of contents. You can also download the entire book in PDF format. See Chapters XVII and XXIII which are specifically about the soul.
http://www.aurobindo.ru/workings/sa/18-19/index_e.htm -----------------------
Another set of Sri Aurobindo's writings which are very illumining and useful are his "Letters on Yoga", letters which were written to his disciples over many years on various spiritual subjects. These volumes have been edited and arranged by subject which is very helpful. The writings are more conversational in tone and therefore a bit easier to read. I also recommend looking over the tables of content to see if any subjects are of interest. Specifically on the soul - I know it is in there, because I have seen and read, but could not presently find exact locations and unfortunately, beyond the tables, these volumes are not indexed, but there is much to benefit by.
http://www.aurobindo.ru/workings/sa/22-24/index_e.htm---------------------------
2) another author I often recommend as being inspiring and helpful in a practical sense is Sri Chinmoy. Prolific like Aurobindo, but much more accessible and in an entirely different way. If you go to this site link below which is a large collection of his writings and do a site search (upper right) for "soul" you will get an unbelievable 12,000+ returns. Since many of these are within poems (he wrote tens of thousands) you may want to search using larger phrases that include "soul", in order to get some more expository or Q+A items, unless you like 'soul' poems.
http://www.srichinmoylibrary.com/As I said, and it needs to be said here - these authors are inspiring for me. I am simply recommending them provisionally with the qualification that readers must determine the ultimate value and possible utility for themselves according to their own values.
Meanwhile, I hope this may be helpful in some way.
Be well,
- u