Out of thoughtlessness Prajna emerges as the intuition of insight and the practice of the Presence. With no thought and no concept, the Presence of our True Self emerges. When this Presence is practiced, no judgment is made of incoming phenomena. Thusly, in the moment, penetrating the appearance with the Presence, joining with the Presence behind the appearance, is practicing the Presence, is practicing Prajna. There can be knowledge of things, but that is relative knowledge.
All knowledge is relative.
Things are things relative to one another. On the level of the Absolute, things do not exist. To know that there is nothing to know is Prajna. To realize that there is nothing to be realized is Prajna. To know that there is nothing to be attained is Prajna.