The benefits of this text, according to Lama Zopa Rinpoche: “This meditation-recitation averts all spells, cursing spirits, black magic, and curses of the ancient writings. It averts all epidemics and infectious diseases, spirits and interferers, evil demons, and bad astrological charts. It averts [the effects] of the ritual master of the sangha assembly performing wrathful rituals and initiations without first subduing the ground. It averts all types of uncleanliness and pollution from corpses, defilements, masonry work, and the demolishing of old houses. In short, all evils, negative beings, bad business transactions, and so forth—whatever one may think of—is all averted by this meditation-recitation. It also cures internal illnesses, tumors, phlegm diseases, and so forth.”
Composed by Lama Zopa Rinpoche, translated by Fabrizio Champa Pelgye.
This practice requires the student to have permission/empowerment received from a qualified master in order to engage in the self-generation of the deity. However, it is permitted to do this practice without such an empowerment as long as you do not generate yourself as the deity. Instead, you should generate the deity at the crown of your head or in front of you instead of self-generation.