The young man Sun Chi finds the spiritual vein jade in the secret realm of Lingxi Valley, obtains the spiritual marrow bead deep in the stone cave, and concentrates on refining it according to the ancient rune mental method, successfully breaking through to the spiritual movement realm, and unlocking the spiritual vein jade's spiritual energy detection ability. Following the spiritual energy guidance, he treks through the ancient vine dense forest, avoids spiritual energy traps, cracks layers of rune mechanisms, and finally reaches the hidden cave dwelling left behind by ancient cultivators. In the mental method secret chamber, he finds high-tier immortal cultivation mental methods and pure spiritual crystals, refines the spiritual crystals and comprehends the mental method under the guidance of the guardian spirit, breaks through the realm barrier, and steps into the late foundation establishment stage. From then on, Sun Chi embarks on a much broader path of immortal cultivation, continuing to explore the ancient secrets and practice deep within Lingxi Valley.