Cultivators are those who can most endure solitude. A Nascent Soul Cultivator can meditate for years, even decades.
However, when extended to an almost infinite time, no cultivator can endure it.
Though this is merely the test of the 'Innate Wood' divine ability inheritance, bringing spiritual perception to the cultivator, it's not true time loss.
Nonetheless, the prolonged solitude still causes the soul of the cultivator to age, this aging comes from spiritual emptiness.
The 'Innate Wood' trial that Li Shiming encountered was indeed very troublesome, and previously no trial participant has successfully passed this challenge.
Many cultivators have experienced soul aging due to prolonged spiritual solitude, and even after leaving the trial, their soul couldn't recover, eventually leading to no advancement in cultivation until they expired from life span depletion.
This is also why Great Cultivator Mao Jing reminded Great Cultivator Luo Pei—to prevent such occurrences.
