1 Cor 1:18 For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.
The cross is the power of God. For the un-indoctrinated this may seem foolishness or at least trivial. But for you who are being saved, you have been given revelation. This revelation is eternal Hell and sin, separation from God and curse. But now you see eternal life and forgiveness, love and new life.
You can see though once blind. You have moved from hopelessness, due to death, to the joy in hope and peace in the security of his promise. This punctuated at the cross and codified in the resurrection.