In 1933, he attained the supreme state called nirvikalpa samadhi (superconscious state or nirvana). After that, he remained in seclusion for many years, studying the mind-functions and writing books. Especially after the partition of India in 1947, and seeing the atrocities there, his "heart melted, as it were", and he wrote some more books.
In 1933, he achieved the highest state of consciousness called nirvikalpa samadhi (superconscious state or enlightenment). Following that, he withdrew from public life and spent many years in solitude, studying mental processes and writing books. In particular, after India's partition in 1947, witnessing the atrocities, his "heart softened," leading him to write more books.