Background: Sri Aurobindo (Bengali: [Sri Orobindo]) (born Aurobindo Ghose; 15 August 1872 - 5 December 1950) was an Indian philosopher, yogi, guru, poet, and nationalist. He joined the Indian movement for independence from British rule, for a while was one of its influential leaders and then became a spiritual reformer, introducing his visions on human progress and spiritual evolution. Aurobindo studied for the Indian Civil Service at King's College, Cambridge, England. After returning to India he took up various civil service works under the maharaja of the princely state of Baroda and became increasingly involved in nationalist politics and the nascent revolutionary movement in Bengal.
Context: In Pondicherry, Sri Aurobindo dedicated himself to his spiritual and philosophical pursuits. In 1914, after four years of secluded yoga, he started a monthly philosophical magazine called Arya. This ceased publication in 1921. Many years later, he revised some of these works before they were published in book form. Some of the book series derived out of this publication were The Life Divine, The Synthesis of Yoga, Essays on The Gita, The Secret of The Veda, Hymns to the Mystic Fire, The Upanishads, The Renaissance in India, War and Self-determination, The Human Cycle, The Ideal of Human Unity and The Future Poetry were published in this magazine.  At the beginning of his stay at Pondicherry, there were few followers, but with time their numbers grew, resulting in the formation of the Sri Aurobindo Ashram in 1926. From 1926 he started to sign himself as Sri Aurobindo, Sri (meaning holy in Sanskrit) being commonly used as an honorific.  For some time afterwards, his main literary output was his voluminous correspondence with his disciples. His letters, most of which were written in the 1930s, numbered in the several thousands. Many were brief comments made in the margins of his disciple's notebooks in answer to their questions and reports of their spiritual practice--others extended to several pages of carefully composed explanations of practical aspects of his teachings. These were later collected and published in book form in three volumes of Letters on Yoga. In the late 1930s, he resumed work on a poem he had started earlier--he continued to expand and revise this poem for the rest of his life. It became perhaps his greatest literary achievement, Savitri, an epic spiritual poem in blank verse of approximately 24,000 lines.  Sri Aurobindo left his body on 5 December 1950. Around 60,000 people attended to see his body resting peacefully. Indian Prime Minister Jawaharlal Nehru, and the President Rajendra Prasad praised him for his contribution to Yogic philosophy and the independence movement. National and international newspapers commemorated his death.
Question: why did it cease?

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