Koishi Komeiji's Spread Shot (a Touhou LW original). She shoots out heart-shaped bullets from behind her targets. The unconscious mind is most definitely not devoid of thoughts. It merely contains thoughts that are below the level of conscious awareness. Don't you think it would be wonderful to be able to use your unconscious mind to communicate with others?

Koishi Komeiji's Focus Shot (a Touhou LW original). She appears to be frantically throwing heart-shaped bullets in this attack. The way she moves makes it look like she is dancing, albeit awkwardly, and that makes her look kind of cute. Koishi can easily dance even unconscious... but why does she dance?

Koishi Komeiji's Spell Card. This attack forces her target into a state of paranoia, where they believe that they're being persistently targeted. If you ever feel like you've become embroiled in a plot, or that your friends are betraying your secrets, or that you're constantly being observed... you may just be tired. That's what the person standing behind you thinks too.

Koishi Komeiji's Spell Card. She shoots out a double helix made of heart-shaped bullets and then scatters them in all directions. DNA is a type of genetic material and is short for deoxyribonucleic acid. According to a certain notable scholar, there is a thing called the collective unconscious, which acts kind of like a genetic model and explains that common ancestry is the reason why different groups of people share similar cultures. When DNA is damaged, there is a risk of mutation. Perhaps something similar happens when the collective unconscious is damaged.

Koishi Komeiji's Last Word. She blankets everything in thorny roses. They apparently have some connection with her unconscious mind. Although her unconscious mind harbors her pure and innocent feelings, it may also contain a defensive ferocity born from this innocence. The rose with its thorns could be symbolic of this. Perhaps this ferocity will fade when someone accepts her for who she is―thorns and all.