Ow does a dualistic vision hold one back, spiritually? what role does regetarianism, play in the realization of spiritual goals?

I will send you the hand out which I got from my professor by e-mail. She asked us to write about According to your reading and the hadout, how does a dualistic vision hold one back, spiritually? what role does regetarianism, pla in the realization of spiritual goals?”. You need to read the handout carefully and try to understand about it, and please write what she wants me to do. If you are not familiar with this field, search and get some info, and try to understand.