Bhau Kalchuri is an Indian author; poet, trust administrator, and one of Avatar Meher Baba's very close disciples. He is also the principle biographer of Meher Baba's life. Bhau, who holds master's degrees in public administration, law, and chemistry, met Meher Baba in 1952 and joined him permanently in 1953 at the age of 27. He served Baba in various capacities including as his night watchman. In 1973 Bhau became a trustee of the Avatar Meher Baba Perpetual Public Charitable Trust and is currently its chairman. Kalchuri is best known for his exhaustive biography of Meher Baba, "Lord Meher," a twenty volume 6,472 page chronicle based on diaries kept by Baba's followers from as early as 1922, as well as recorded interviews. He is also author of "Avatar Meher Baba Manifesting" and "The Nothing and the Everything" and has written several plays and books of verse. Bhau writes in Hindi and English. In "While the World Slept" Bhau Kalchuri recounts stories from his years as Meher Baba's night watchman between 1953-1969. In this short book we get a small peek into a deeply private, often unfathomable side of the Avatar's internal work. Gripping, moving, sometimes outright disturbing, we find the master at work with both Universe and disciple, occurring in the middle of the night, as the world was sleeping.