Panic was never a factor. She looked into the maw of her burning reactor, as it tried to absorb the unknown energy within the unknown dimension as much as it possibly could. MF saw that the property of this unique mana-like energy was highly different from normal mana or subconscious strings like those within the symbols pill.
But due to the identical form, it was compatible with the mana reactor enough to deem it as mana and convert it into 'Strange Matter', corroding MF's body from the inside through the conducted bone's passage. So MF tweaked her mana reactor to create one more socket to store this unique energy, isolating it out of her body structures.
The words still echoed in her mind, prying more and more, she found out that the unique plane of existence was similar to a soul's hidden private realm within a living being. Essentially, she was currently within the private space that contained the soul of Anvriel.
'So this is your true form.'