"It is a tree of life to those who grasp it, and its supporters are happy": Says the holy Baal Shem Tov: "And those who rejoice in it are happy" - the word "its supporters" (tomcheha) can be read as if "those who rejoice in it" (somcheha) (with a left shin).
That whoever rejoices himself (= makes himself happy) with the Torah, and brings joy to the Torah, merits to be happy with children and grandchildren engaged in Torah and mitzvot.
A segulah for prayer with proper intention all year long: The Seer of Lublin says in the name of the holy Baal Shem Tov, who said that it was told to him from the mouth of Eliyahu H'Navi a"h that whoever prays with proper intention on the three days: "Hoshana Rabbah, Shemini Atzeret, and Simchat Torah," is then able to pray all year with proper intention (Sha'ar Yissachar)
www.kikar.co.il
Noam Elimelech: Where Does the Shechina Seek Her Rest?
When the Holy Temple stood, the Divine Presence dwelt within it, and from there Her light went out to the entire world. Therefore, to merit divine inspiration and prophecy required great labor and effort. Even then, only at special times, such as the days of Simchat Beit HaShoeva - when they would draw handfuls of divine inspiration and prophecy. But now, when the people of Israel dwell in terrible exile and the Shechina is rolling in the dust, and the Shechina searches for a place of rest - even when She finds a simple inn, but one that is clean of transgressions and sins - there She will establish Her dwelling."
www.hidabroot.org