In 1922 Krishnamurti and Nitya travelled from Sydney to California. In California they stayed at a cottage in the Ojai Valley. It was thought that the area's climate would be beneficial to Nitya, who had been diagnosed with tuberculosis. Nitya's failing health became a concern for Krishnamurti. At Ojai they met Rosalind Williams, a young American who became close to them both, and who was later to play a significant role in Krishnamurti's life. For the first time the brothers were without immediate supervision by their Theosophical Society minders. They found the Valley to be very agreeable. Eventually a trust, formed by supporters, bought a cottage and surrounding property there for them. This became Jiddu's official residence.
According to witnesses it started on 17 August 1922 when Jiddu complained of a sharp pain at the nape of his neck. Over the next two days the symptoms worsened, with increasing pain and sensitivity, loss of appetite, and occasional delirious ramblings. He seemed to lapse into unconsciousness, but later recounted that he was very much aware of his surroundings, and that while in that state he had an experience of "mystical union". The following day the symptoms and the experience intensified, climaxing with a sense of "immense peace". Following — and apparently related to — these events the condition that came to be known as the process started to affect him, in September and October that year, as a regular, almost nightly occurrence. Later the process resumed intermittently, with varying degrees of pain, physical discomfort and sensitivity, occasionally a lapse into a childlike state, and sometimes an apparent fading out of consciousness, explained as either his body giving in to pain or his mind "going off".