|All elements of a persons life can be channeled to holiness.
This holds true not only when he engages in the four cubits of halakha, but even when he is not consciously thinking of holiness and even while involved in other matters.
A person can reach the divine light from every area of his existence in one way or another, breaking through the thickest darkness that spans the entire universe, and making himself a dwelling place for God.
When a person builds a sanctuary for God in his life, he must construct it together with its adjoining courtyards, so that at the very least he may bring all existence into those courtyards, if not into the Holy of Holies itself.
Rabbi Adin Steinsaltz