Much like me, sissy mantra's are a dime a dozen on the internet, so here's mine.  A little longer than most, it deals with themes  such as being a good sissy, sucking cock, serving other's, and find your worth in the sexual gratification of your partners.
It's 20 lines repeated in random order and quanities, voiced by polly.  The script contains the list of the 20 mantra's that are used.
Enjoy.  Be responsible.  I wasn't and I paid for it.  (unrelated to this file, this is just general advice about letting things into your head).