A very interesting topic. Tom Campbell is a physicist, consciousness researcher who speaks about this subject. I have shared som interviews with him here on steemit.

This is a good one:

https://steemit.com/spirituality/@hanse/tom-campbell-on-your-soul-purpose-podcast-with-dr-john-filo

Many new series about this too, here are 3 good ones.

http://www.imdb.com/title/tt5651844/

http://www.imdb.com/title/tt5753856/

http://www.imdb.com/title/tt4047038/