Just as wine requires a time to ferment, which seems like inactivity, so too does wisdom require time transform. Therefore, newly discovered insights are the result of this fermenting process.
There will be times when you may not SEEM to be spiritually active, but you are not being inactive. A restful state is a required process for knowledge to become wisdom. What is taking place is your energy body is reorganizing itself. You may think of it as becoming more streamlined and efficient. This streamlining or efficiency or reorganization allows a greater degree of conscious and subconscious communication with the astral level, which allows the Higher Self to distill wisdom and thoughts upon your conscious mind.
Insight or wisdom can be broadened and deepened through your experiences and further experiences.