It means that we do our utmost not to be “fashioned after this system of things ” with its corrupt morals, debased entertainment, and warped thinking. ​ — Eph. 2: 1 - 3. Why do we engage in Christian activities?
وَهذَا يَعْنِي أَنْ نَبْذُلَ وُسْعَنَا لِئَلَّا ‹ نُشَاكِلَ نِظَامَ ٱلْأَشْيَاءِ هٰذَا › بِآدَابِهِ ٱلْمُنْحَطَّةِ ،‏ تَسْلِيَتِهِ ٱلْفَاسِدَةِ ،‏ وَتَفْكِيرِهِ ٱلْمُنْحَرِفِ .‏ —‏ اف ٢ :‏ ​ ١ -‏ ٣‏ .‏