In the Vaikuntha factually there is no fault in anyone, but there is another type of competition. The competition is that one devotee thinks of other devotees how nicely they are serving the Lord. In the material world the attitude is that everyone likes to think that I am doing better than others. This is material conception. In the Spiritual Sky it is just the opposite: Everyone thinks that my contemporary devotees are doing better than me.
Letter to Brahmananda, 15 November, 1969