As expressed above, in practice, the blessing on the Torah is made only in the morning, for: “Torah study resemble the Morning Blessings; that it was ordained they be recited only once daily...”
It would seem then that according to the likening to the morning blessings, the Alter Rebbe would not need to explain that women too have a constant mitzvah of Torah study to explain why they only make the blessing once, for the reason that they make it once is similar to the rest of the morning blessings that are made only once.
This though is not the case, and it is indeed necessary. For, in regards to the morning blessings the Alter Rebbe explains:
Text 9
Our sages ordained that the Morning Blessings be recited for the natural order and its functioning, from which the created beings derive benefit every day. For this they should bless the Holy One, blessed be He, the first time they derive such benefit every day.
Shulchan Aruch ADHZ, Orach Chaim 46:1
It is therefore understood that the morning blessings are only recited on things that are constant each day. However, benefits that are not constant each day are not recited each day.
However, because women too must learn each day to know their commandments they too must learn each day.
It is for this reason that the Alter Rebbe states that women have a constant obligation in the study of Torah as this explains why they make the blessing each morning.
(Based on Likutei Sichos 14, 2, reworked by Rabbi Dovid Markel. To see other projects and to partner in our work, see: www.Neirot.com)
