Likutei Sichos – Vol 39 p 43 ff The final answer is that just as every day we do one Kabbalah act on our level, the same (on a higher level) we do once a year in preparing for Tekiyos. Another idea is that the preparation meant here is ‘Kabbalas ol klali’ and there is…

Likutei Sichos – Vol 39 p 43 ff Leshaim Yichud each day is the little Kabbalah that each one must do to be included in the (entire) world of Kabbalah as given to us in the Alter Rebbe’s nusach. Page 46-7.