I have received information that some of our devotees are mixing with the babajis in Vrindaban. This has produced so many problems amongst our men and women who visit Vrindaban. Here in Los Angeles, we have found that there is a group of about 40 devotees who privately meet to discuss the intimate pastimes artificially thinking that they can enter into the understanding of the gopis prematurely. This will create havoc in our society, and the result will be that if this is allowed to go on, our preaching work will be greatly hampered. This premature desire to understand the lila of Krishna is due to mundane sex-life desire as we have seen amongst many of the babajis and sahajiyas in Vrindaban. Our Jagannatha das came back from Vrindaban asking me that he had heard some babaji speaking about siddha-deha and he also was listening to these babajis. So I want this immediately stopped. If it continues, this mixing with the babajis, then it will mean spoiling. In many cases, these babajis keep 2 or 3 women. Asatsanga tyagi. Their association is to be avoided and prohibited amongst all of our devotees who visit Vrindaban.
From Srila Prabhupada's letter to Nitai — Los Angeles 7 June, 1976