What was Baba's strange comment to Kakasaheb Dixit after he had a vision of Vitthal?

After Kakasaheb Dixit experienced a vision of Vitthal during his morning meditation, he went for Sai Baba's darshan. As recounted in Chapter 4, Baba surprised him by immediately asking, "Vitthal Patil had come, right? Did you meet him?" This confirmed that Baba was omnisciently aware of Kakasaheb's private spiritual experience. Baba then made a playful yet profound comment, referring to Vitthal as "a big runaway" and advising Kakasaheb to "Nail him down and make him steady," warning that the divine vision would escape if his attention wavered even for a moment. This served as a lesson on maintaining focus in one's devotion.