Jiddu Krishnamurti (/ˈdʒɪduː ˌkrɪʃnəˈmɜːrti/;11 May 1895 – 17 February 1986) was a philosopher, speaker and writer. In his early life he was groomed to be the new World Teacher but later rejected this mantle and withdrew from the Theosophy organization behind it. His subject matter included psychological revolution, the nature of mind, meditation, inquiry, human relationships, and bringing about radical change in society. He constantly stressed the need for a revolution in the psyche of every human being and emphasised that such revolution cannot be brought about by any external entity, be it religious, political, or social.Read about Jiddu Krishnamurti in Wikipedia
The purpose of having the title 'World-Teacher' is to acknowledge, to show, the condition of mind and heart when you have achieved. It is like saying: 'I have painted a picture'. It is like saying: 'I have written a poem'. It is an assertion of the fact of attainment, rather than the narrow understanding that is given to labels and phrases. What the phrase indicates is of importance.
The Hindu, the Oriental, says that the physical is but the shadow of the Eternal, of the Truth; and he says 'In order to understand the Truth, I must let the shadow go, and not concern myself with it, but with the understanding of the Eternal. ' So he does not concern himself with the physical. He is more concerned with the quality of mind and heart. Hence there is disease, there is disorder, and there is chaos and neglect and the gradual running down of the physical.