Persons who are always planning to do harm to other living entities are not eligible to understand Krsna consciousness and cannot enter into the realm of transcendental loving service to the Lord. Also, there are so-called disciples who become submissive to a spiritual master most artificially, with an ulterior motive. They also cannot understand what Krsna consciousness or devotional service is. Persons who, due to being initiated by another sect of religious faith, do not find devotional service as the common platform for approaching the Supreme Personality of Godhead, also cannot understand Krsna consciousness. We have experience that some students come to join us, but because of being biased in some particular type of faith, they leave our camp and become lost in the wilderness. Actually, Krsna consciousness is not a sectarian religious faith; it is a teaching process for understanding the Supreme Lord and our relationship with Him. Anyone can join this movement without prejudice, but unfortunately there are persons who feel differently. It is better, therefore, not to instruct the science of Krsna consciousness to such persons.