These flashes of light, peace, bliss, and understanding are brief but they have the intended effect. They encourage the aspirant to continue his quest and they implant in him a deep yearning to gain entry into the world to which they belong. They will be brief because the ordinary condition of thought and feeling is still far below the exalted condition revealed during these flashes. In other words, he has still to toil away at self-improvement so as to deserve the treasures which have been momentarily shown him.
-- Notebooks Category 22: Inspiration and the Overself > Chapter 8: Glimpses and Permanent Illumination > # 13