Simchas Torah
The Yesod VeShoresh HaOvadah (ch.16) writes, "Whoever is happy with the Torah on this day is guaranteed that his children and descendants will always be Torah scholars."
The Shalmei Chagigah (p.292: printed year נ"תק) writes, "Fortunate is the person who rejoices with the Torah on Simchas Torah for this will rectify his soul for the times that he disgraced the Torah. Additionally, there's a guarantee from early scholars that whoever is happy with the Torah on this day will have offspring who will always study the Torah. There was a Rav who was very happy on Simchas Torah, and his descendants were renowned scholars for three consecutive generations. Everyone knew it was because of his happiness with the Torah on Simchas Torah. He rejoiced and danced with the Torah in a way that wasn't done by other Rabbanim and gedolei Yisrael. Despite his prestigious Rabbinic position, he would jump and dance before the Torah and encourage others to do the same." In this merit, he merited children and grandchildren exceptional talmidei chachamim.
The Shaar HaKavanos writes, "My teacher (the Arizal) went around the bimah... danced and sang with all his strength. Then, on motzei yom tov, he went to several batei midrashim to dance with the Torah (called in Eretz Yisrael שניות הקפה), and this lasted many hours."
Maaseh Rav states that the Vilna Gaon zt'l "would go before the sefer Torah with immense joy, his face was like a burning fire, and he would clap and dance with all his might before the Torah."
39. Literally, this means Shemini Atzeres is its own holiday, not a continuation and final day of Succos. The Satmar Rebbe zt'l danced with all his strength on Simchas Torah, although he was weak. When people questioned him about this, he replied, "Chazal (Succah 48.) say, שמיני היא עצמה בפני רגל עצרת."
