SEE THE PERSPECTIVE OF CHRIST ON THE CROSS.

Heb 2:14  For as much then as the children are partakers of flesh and blood, he also himself likewise took part of the same; that through death he might destroy him that had the power of death, that is, the devil; 

When God say, My ways are not your ways and my thoughts not your thoughts, truly He is amazing in His ways of doing things. See, that through death Christ might destroy him that had the power of death, the devil.
in man's ways, when one dies, that's all. You can slap him, however great he was, you can spit on him, you can do whatever you like to him. But in Christ's death, the battle had just started, see, that He might destroy the one who had the power of death. And now we have the victory, life changed, that from now onward we regard no man according to flesh: yea, though we have known Christ after the flesh, yet now henceforth know we him no more. Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new. 2 Cor 5:17.

We became new man after the battle between Christ and the devil, and with Christ coming back alive and victorious says' "All power is given unto me in heaven and in earth" Hence we who had no hope and access of being alive to God through the law may have faith in Christ Jesus, who being born under the law, tempted by the devil, having tested death Himself might be merciful and faithful high priest and a mediator between us and God.

Heb 2:17  Wherefore in all things it behoved him to be made like unto his brethren, that he might be a merciful and faithful high priest in things pertaining to God, to make reconciliation for the sins of the people.

Remember the person who had the power of death was Satan, and Satan was against God, Oh yes he is still an enemy and an enemy to all God's work. You're God's workmanship created in Christ, so even to you, Satan is an enemy, he wanted all of us stolen, destroyed, and killed from God.

Joh 10:10  The thief cometh not, but for to steal, and to kill, and to destroy: 

So, that is Satan's mandate,to steal, kill and destroy the work of God. If you have been there and feeling good, fine with devil, be alerted, this is his purpose in your life. He never wants you happy, he is just using you to fulfill his mission. But Christ to;

Joh 10:10 cont. I am come that they might have life, and that they might have it more abundantly. 

So He comes to give us life, having it more abundantly. Christ is a life give, a life changer and He is the merciful and faithful high priest in things pertaining to God. Receive Him and you will have a new life. God bless you and Amen.