Tian Jiarui wrote a very beautiful message at the end of VOS airing, including the 6 roles he played.

I copy paste here without cutting any words

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First, I must become that nameless, blind little fox.
It is the starting point of all journeys, joyful and simple. His world consisted of the wind at the cave entrance, wildflowers by the lake, and the bittersweet taste of raspberries. His joys and sorrows were so simple that his saddest moment was simply not being able to eat fresh raspberries in winter. I was once immersed in this pure happiness, until I saw the gears of fate crush his innocence. He carried his innate kindness into a destiny that even the gods lamented. I've always loved the place where the little fox was born, "Jade Sleep Lake"—three beautiful characters. But I didn't know why it was called that. Later, I found the answer in the lyrics of the film "A Child Like a Fox," written for me by the director, and in the song "Jade Sleep," written for Liu Yuning: "In ripples, jade sleeps," "Gentle repayment, like jade sleeping." A virtuous person is kind, gentle as jade, repaying with gentleness. Ah, little fox.

Then, the world darkened, and I became a blind spirit.
I began to have human senses and emotions. Without sight, he required me to feel the shape of the wind, the scratches on the wall, the holes in the rag doll, hear the sobbing across the way, and the New Year's Eve fireworks and snow outside the window. When I played him, my heart was at peace. He made me believe that if there is light within, it can truly illuminate darkness and chaos.

And the most exhilarating moment was probably when I was the puppet spirit created. Many people liked him, and I liked him too. He was like a joyful note leaping from the spirit's heart, retaining innocence while filtering out all the cruel marks of time. Playing him was a rare respite between those heavy and oppressive scenes. Every day when I saw the call sheet for a spirit role, I couldn't help but smile, humming a song as I jumped into the car to get dressed. If there really were magic to tailor silk, I think everyone would want to preserve the most precious moments of their lives.

But with lightness comes heaviness. Soon, I will become the Dragon God.
The name of the Dragon God is a lonely, snow-capped mountain. He possessed a supreme divine position, yet also carried a heavy burden of shackles. When playing him, my body always felt heavy, and my voice became weak when delivering lines, as if something was always gripping my heart. Sometimes I joked, "I know, it's Jikan. It will eventually devour me, but it also loves me, trying its best to save me."

Jikan's coldness was like the ultimate stillness, a sigh without echo, an empty valley without flowers or color. To interpret him, one needed to empty oneself, detach from all outward emotions, and let the performance become an almost nihilistic existence. Not sadness, not pain, but nothingness. Nothing at all, wanting nothing, only wanting to return to the past, to the carefree days of youth, opening my eyes to the scorching summer sun and cicada chirps, the wind and snow far away, the cruelty of fate far away.

Finally, there's the Source of the Calamity. Everything seemed to have returned to its starting point. He too was born blind, but compared to the innocent and passionate little fox, he was like a timid flame, afraid to even shine too brightly in the darkness. He was cowardly, always wanting to hide, hiding behind his parents, hiding behind his brother. The only time he dared to be brave was when he said to his brother, "Brother, just let me die. I've already dragged this family down."

A person with six faces, shuttling between them. During the more than one hundred days on set, today I was a lively puppet spirit, tomorrow I would sink into the eternal solitude of the Dragon God; just moments ago I was floating in the desolate void, the next moment I would ignite the dying flame in Yuan Xizai's eyes. My emotions seemed to be divided into six rooms, each day requiring me to precisely open a different door.

Source: https://m.weibo.cn/status/5291198395711786