"You and I must therefore seek to make use of even the most trifling 
opportunities that come our way, to sanctify them, to sanctify ourselves
 and to sanctify those who share with us the same daily cares, sensing 
in our lives the sweet and inspiring burden of the work of 
co‑redemption. (Friends of God, 8-9)"
(http://www.opusdei.org.in/sec.php?s=310)