The name Tzvaos in BY”A- an idea that originates with the Alter Rebbe and not from before. It refers to the idea that there is Godliness also in the lowest worlds. The meaning of the Tzivos Hashem in Chumash are the sparks the Jewish people took with them from Egypt, the Jews themselves are ‘Al Tzivosam’- above the level of the sparks. BeEtzem means that through birurim they reached Atzmus.
