There is a lot of talk on what is real and what is illusion
We all have our own realities. There will never be an agreement, on what is real.
In my opinion, we should try, to find what seems right, according to our heart, and act on that.
There is only one rule
DO NO HARM
Begging your pardon, but this is antithetical to the Buddha's teachings: our imperfect perceptions are illusion and cutting through attachment and aversion leads one to reality. There is one reality and it is that which we seek through our practise, the reality of things just as they are, without conceptual imputation. What "seems right" is another illusion and if we judge only according to our heart we are going to be mistaken. Finding what is right is the purpose of the Noble Eightfold Path. Finally, we cannot exist without doing harm to something - we eat, we harm something, we step, we harm something, we wash, we harm something. It is the nature of our being. The universe is not so easily dismissed by such simplistic and wishful thinking.