Everyone knows what perfection is – maybe to a degree
And the easiest is to find imperfections in the other including imperfections in even enlightened saints
A Hindu will easily see imperfections in Jesus and a Christian in Buddhism and ram / Krishna etc
Books, a variety of them, including Gita, Bible, Torah will discuss perfection. But a rare book will describe the thousands of steps to perfection
They may say not to get jealous or greedy. Yet, we easily get jealous when someone has success, money, when best friend pays more attention to someone else etc. How do we change that aspect of the mind. No book has written how to change it except command you not to do it! Is that simple to change mind? Of course not. There is an elaborate process
A guru knows the steps but cannot tell anyone who has not walked the path of meditation!
Bhavin