The Bible is the only supernatural book we have. God’s intention is that we read/hear His Word in a way that lies beyond natural human experiences. (Eph 1:17-19; 2Co 3:18; Jn 15:10-11; Ro 8:10-17)
If you reject His gifts, His grace, then you will lack the ability to love Him back the way He wants us to love Him! You will also lack the ability to love others the way Jesus loves you!
Resurrection becomes the lynchpin of our faith because it is the one proof point that God purposefully points our attention to! It's based upon the promise that He is willing/able to rescue each one of His own children from certain death!