I heard in the name of my Master (the Baal Shem Tov) that just as the Ten Commandments contain the entire Torah, as Rabbi Sa’adiah Gaon wrote,¹⁰ so the whole Torah is included in a single one of its words.¹¹, א, which can be divided into a vav with two yuds, י ו י), or by spelling out each letter in full (aleph= aleph, lamed, pheh). However, on a deeper level, the Baal Shem Tov is alluding to the absolute unity of the Torah, so that even smallest word contains within it all the rest. Ben Poras Yosef, p. 23d

footnotes: ¹¹ On a simple level, this means that each Hebrew letter contains within it all the 22 letters of the alphabet, either by breaking letters down into component parts (such as the letter aleph