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.
A collection of traditional protector prayers as performed by Lama Zopa Rinpoche to remove obstacles to success in practice and our activities to benefit all sentient beings.
40 pages, 2016 edition.