If in meditation he goes down sufficiently far through the levels of consciousness, he will come to a depth where the phenomenal world disappears from consciousness, where time, thoughts, and place cease to exist, where the personal self dissolves and seems no more. If there is no disturbance caused by violent intrusion from the physical world, this phase of complete inner thought-free stillness may continue for a long period; but in the end Nature reclaims the meditator and brings him back to this world. It is only an experience, with the transiency of all experiences. But it will make its contribution to the final State, which is permanent establishment in the innermost being, whether in the depth of silent meditation or in the midst of worldly turmoil and activity.
-- Notebooks Category 4: Elementary Meditation > Chapter 1: Preparatory > # 299
-- Perspectives > Chapter 4: Elementary Meditation > # 15