Dido goes a bit off the rails at the end of Aeneid IV
In dreams she feels cruel Aeneas goad her madness on,/
and ever seems she, friendless and alone,/
some lengthening path to travel, or to seek/
her Tyrians through wide wastes of barren lands./
Thus frantic Pentheus flees the stern array /
of the Eumenides, and thinks to see/
two noonday lights blaze oer his doubled Thebes;/
or murdered Agamemnon's haunted son,/
Orestes, flees his mother's phantom scourge/
of flames and serpents foul, while at his door
avenging horrors wait.
Vergil. Aeneid. tr. Theodore C. Williams
From that passage, are any of these three useful?
"mad, as if she sees the columns of the Eumenides":
Eumenidum veluti demens videt agmina.
"agitated by visions":
"Avenging horrors sit upon the doorstep":
ultrices sedent in limine Dirae.