The battle we face is not a physical one. Instead, it is a spiritual battle with powers that we do not easily see and which are very powerful. We shouldn't dismiss this as an imaginary battle or as an irrelevant struggle. Just as clearly as Satan was crouching at Cain's door, desiring to have him, so he crouches at our door (Genesis 4:7). He will use his forces of evil to do all he can to defeat, destroy, or corrupt us. We must take this war seriously and recognize the spiritual power of our foe.