In Abraham’s 75th year, a new era opened – the era of Torah. The era of tifferet, of the harmony and synthesis of the Divinely bestowed and humanly earned.
Just as there were two primary modes of sanctification of the Land—the “conquest” mode of the First Temple Era and the “settlement” mode of the Second Temple Era—so, too, are there two modes of sanctification in the macrocosmic endeavor of life.