Our enemy, "the Father of Lies", will always use our own weaknesses to deceive us and try to turn us away from the truth, and ultimately from God.
His words will always appeal to our flesh and our imagination ... whether it be lust or greed, or anger and depression ... he knows that our minds and hearts can be easily manipulated through our feelings and emotions:
"But this thing commanded I them, saying, Obey my voice, and I will be your God, and you shall be my people: and walk you in all the ways that I have commanded you, that it may be well to you. But they listened not, nor inclined their ear, but walked in the counsels and in the imagination of their evil heart, and went backward, and not forward."
But by the grace of Jesus Christ and his victory on Calvary, we are now equipped with His power and Spirit to resist the devil and his plan to use our imagination against us ... in Christ, we are more than conquerors:
2 Corinthians 10:3-5
"For though we walk in the flesh, we do not war after the flesh: (For the weapons of our warfare are not carnal, but mighty through God to the pulling down of strong holds;) Casting down imaginations, and every high thing that exalts itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ."