The world around us is the juice in which we swim. We are, in too many ways, like cucumbers being slowly turned into pickles. That is not to say that we have no defense against the insidious creep of the world. But it is statement about the sobering reality of the battle.
Because He arose, because He lives, because we will never die, because He has defeated death, we must fight this tendency.
For more see: Learning from the Bumps on Other Heads.