It is well known that lighting a candle li'iluy nishmas the tzaddik is a great favor and segulah and benefit for the neshamah and for the person who lights the candle. It states (Tehillim 119:105) דברך לרגלי נר, and we understand that the primary נר, candle, is דברך, when one studies his divrei Torah, which is לנתיבתי אור, sheds light on one's path.
Reb Chaim Kanievsky zt'l said in the name of his father, the Steipler, that when he was young, his father, Reb Chaim Peretz, would wake him early every morning to learn with him Bas Ayin, to teach him mussar and yiras Shamayim.
I heard a clever idea from a respected person. In the middle of the year (not exclusively on the 12th of Kislev), when one encounters nisyonos with guarding his eyes, and he fights his yetzer hara, closes his eyes and avoids seeing what he shouldn't, he can make a Bas Ayin seudah (to celebrate that he guarded his עין בת, the pupil of his eye). He can make a seudah with music, drums, and dancing, and be happy that he succeeded in overcoming the yetzer hara, and he can praise Hashem. Such a seudah is certainly also mesugal for yeshuos b'ruchniyus and b'gashmiyus, miracles beyond the rules of nature.
In the Bas Ayin's merit, may all of Klal Yisrael merit all types of salvations, b'gashmiyos and b'ruchniyos, with the coming of Moshiach, speedily in our days.
