God's universe of math, physics, energy and matter, along with His methods for controlling it, are complex beyond our understanding of it. It stands to reason that His requirements for salvation are equally complex. But...
You could be doing the most charitable work, but if your inner workings are grumbling in protest, you are only partially satisfactory in God's eye.
The image of yourself is like nothing you've seen before. With tears in your eyes, you're thinking how is it possible to see yourself this way, like an angel.
The truth is we don't know for sure. All we have are eyewhitness accounts of his body missing from the tomb and tales of sightings of him in the hours and days immediately after the discovery of the empty tomb.
If you believe in the Spirit that is God, then you believe in things that are not of this world.
Have you had any type of experience that belies your sense of the world to make you go, "Holy S--t! What just happened?" Probably not.