Atmospheric Yellow Dust (a Touhou LW original) refers to yellow dust that exclusively travels high up in the sky. Blocking out the sun is a job assigned to a vampire's servant. It must be done at any and all times when the sun shines. Meiling's true identity is unknown. Perhaps her dreams of fighting against Taisui Xingjun (strong against Wood Phase) hint at some secret from her past. She is so exceptionally skilled at manipulating qi that she can even rotate the stars in the sky. It's as if she's fused with a star spirit (strong against Moon Essence but weak to Sun Essence).

The ability of Hong Meiling, who has almost reached the end (a Touhou LW original). Meiling completely lost this ability due to a Lost Word. She is currently regaining it little by little, though not through restoring or replicating her old ability, but with a newly constructed original ability that formed a core to build upon. She has continued to travel across worlds to try and end the Lost Word Incident. This Meiling once lost everything to a Lost Word, which makes her one of the Restored. What is energy? The true form of what has long been referred to as qi is now understood by those in the outside world to be energy. But that begs the question, what's energy? Is it the capacity to move objects? Or does it refer to the heat that rises up from within the Earth? ...In truth, it's neither. Energy is the fundamental building block of the universe. It's unclear to what extent Meiling understands that concept. From an academic perspective, it's safe to say she barely understands it at all. However, her ability to manipulate qi, which she has cultivated over many years, gives her an intuitive sense of what energy is and how one can use it. Given that energy is the fundamental building block of the universe, manipulating it means directly influencing all those in existence. That's a bold claim, but as of right now, there's no evidence to suggest it isn't accurate. But what does it truly mean? The path toward qi manipulation mastery is essentially never-ending, requiring you to become capable of manipulating everything in the universe at will. As such, the path allows for many different belief systems and approaches. While Meiling differs from hermits and Taoists, you could say they are all on that same path―one that none of them will ever reach the end of. Therefore, what follows is an entirely baseless theory. Whether they have a physical body or not, a single youkai's existence is spatially limited. However, Meiling has the ability to manipulate qi. If she was able to connect herself to a being free of spatial restraints, she could perhaps use qigong to directly influence the universe, albeit for a limited time and in a limited capacity. Simply linking with a god or a spirit isn't enough. Meiling would need to link with one of those beings sealed in the legendary Fengshen Bang. It would be even better if that being was an astral god who also held power over the Earth, but there aren't so many of those. Seishin The world of stars and the spiritual world are connected, or made one, via the concept of the astral world. Seishin is a magic item that exists as a part of that concept. It takes the form of a dragon flying between Heaven and Earth, but the one who creates it is Meiling and the qi she gathers. Modern humans surely don't feel as though their spirits are linked to the stars far up in the heavens. Perhaps they'd understand that truth better by realizing that, from the instant of the Big Bang, everything in the universe has been determined by the flow of energy. Considering the Tai Sui stars would also help them realize the heavens and the underworld are two sides of the same coin (recall the Geocentric model), and that stars traverse the heavens, pass between all living beings on Earth, and sink below the ground. The motion of the stars is a prime example of something that makes the flow of qi visible. ...But let's forget the difficult stuff for a moment. Seishin connects the universe within Meiling to the universe outside of her. It also creates a boundary between the two―a gate, if you will―and Meiling serves as its gatekeeper.