G-d told Moses, "I will dwell among Israelites."
We might think that only righteous and holy people can create a physical sanctuary for the Divine presence. Yet the Torah makes it clear that the Tabernacle was built by every man, women, and child, regardless of their spiritual status.
This was possible only because of the giving of the Torah, when G-d made His essence--which transcends the limitations of the natural order--the inner essence of every Jew. On account of our inner Divine essence, we remain inwardly true to our Divine nature even when we appear not to be focused on holiness. At our core, our truest and purest desire is to be one with G-d and fulfill His will.
Thus, even a Jew who appears to be self oriented is capable of building a dwelling for G-d. Every one of us has the capacity to transform the world into a place about which G-d can say: "I will dwell there, among you."