Passover preparations change the routines of a home. According to tradition, the Bat Ayin noticed that many people needed somewhere to stay and study during those busy days.
A Thoughtful Practical Rule
He instituted a practice of not whitewashing or painting study halls just before Passover, so that public spaces would remain open while homes were busy with preparations. This simple, practical measure shows consideration for people's needs and the importance of keeping a welcoming place available amid the holiday preparations.
For further exploration: The Bat Ayin's Practices, Bat Ayin and Its Teachings andStories and Testimonies.