Judging people is one of the first things which must be totally swept away from the consciousness before you can take even a step on the supramental path, because that is not a material progress or a bodily progress, it is only a very little progress of thought, mental progress. And unless you have swept your mind clean of all its ignorance, you cannot hope to take a step on the supramental path.
Ref: Questions and Answers 1957 – 1958