Ravana's strict and oft-repeated instructions to the guardswomen was:
"Don't let Sita utter the name 'Rama'!" Accordingly, the guardswomen
would frequently say to Sita: "Sita, don't speak the name 'Rama'."
In this way, both the sinful Ravana and his fallen-angel guardswomen
themselves repeatedly invoked the name of God. Though the direction of
their ideation was negative, their object of ideation was supremely
positive. As such, their liberation was assured.