If you do not experience it directly, but simply cling to intellectual understanding, you will never achieve the peace of true liberation. You must let go of all ideas and notions about reality and spiritual practice, abandon
all views of religion, awakening, void, mind, and the rest. As long as you continue to grasp conceptual understanding, you will remain in a tangle of views about self and other.
Remember, even if you memorized all the teachings of all the sages in the ten times, and even if you understood every single doctrine of every single tradition, if you do not experience it directly you will never be truly free.