He should endeavour skilfully to keep active from one moment to another this wonderful faculty which lays the heart of reality open to his insight. He should keep the integrity of this insight quite unimpaired even when he is occupied with the shapes and is participating in the events of a space-time, relativity-stamped world. After he has learned to rest inwardly in the thought-free state at all times and amid all circumstances and not merely during meditation, it is not essential that he should keep permanently free from thoughts in order to keep always in the pure-Thought awareness. No mental or physical activity can interrupt this insight once it has been fully realized. For then whatever thinking the duties of earthly life may rightly demand of him will be done within the pure Thought and not with any feeling of being apart from it. He will feel that it is one and the same pure Thought which is able to play through all these separate thoughts without prejudice to its own self-identity.
-- Notebooks Category 23: Advanced Contemplation > Chapter 7: Contemplative Stillness > # 324