I thought I'd share this article I just read, which I found interesting as I've been doing the same, or similar, for ages now, particularly the breathwork. I decided to stop chasing the distances and times 'at all costs' some time back and just enjoy my runs, be in the moment. I do still listen to music sometimes though. I think the bodyscanning is a really important element, and I'm sure this approach (plus the restorative yin yoga I practise) has helped me to stay running injury free. Check it out (it's a great site for interesting articles)
bit.ly/15EAa6A
bit.ly/15EAa6A