In the process of burning out these confusions, we discover enlightenment. If the process were otherwise, the awakened state of mind would be a product dependent upon cause and effect and therefore liable to dissolution. Anything which is created must, sooner or later, die. If enlightenment were created in such a way, there would always be a possibility of ego reasserting itself, causing a return to the confused state. Enlightenment is permanent because we have not produced it; we have merely discovered it.
Chogyam Trungpa (2010). “The Collected Works of Chogyam Trungpa: Volume Three: Cutting Through Spiritual Materialism; The Myth of Freedom; The Heart of the Bud dha; Selected Writings”, p.8, Shambhala Publications