i think you ca get this sutra from FPMT store, and with only a small donation. ive read it once, its a nice sutra though but i didnt understand the how are sentient beings classified as ''young sentient beings '' and '' old sentient beings ''. it gives you a nice visualization of a buddha purifying a complete realm but your like , pleeh , like that would happen here on this planet on this day and age. its a precious gem though, very nice to be able to read it, its worth the go, maybe someday again, it describes the benefit to be massive, immeasurable basically if animal hears you recite the sutra, even one gatha. but the first and only time i have read it i was waiting and waiting for the actual teaching of the sutra to start, and then it ended, describing only the benefits of reading the sutra. which left me a bit baffled.
If the thought of demons
Never rises in your mind,
You need not fear the demon hosts around you.
It is most important to tame your mind within....
In so far as the Ultimate, or the true nature of being is concerned,
there are neither buddhas or demons.
He who frees himself from fear and hope, evil and virtue,
will realize the insubstantial and groundless nature of confusion.
Samsara will then appear as the mahamudra itself….