The eye of a needle
But to save the world through him (John 3: 17)
No one has ever gone into heaven except the one who came from heaven—the Son of Man. Just as Moses lifted up the snake in the wilderness, so the Son of Man must be lifted up, that everyone who believes may have eternal life in him.” For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. For God did not send his Son into the world to condemn the world, but to save the world through him. (John 3: 13-17)
The cross and death are inevitable and constitute the narrow door through which one must pass to reach eternal life. The cross and death are like the eye of a needle through which our ego, our will, our intelligence and, above all, our heart, must pass. Only if we entrust ourselves totally to Jesus will we be able to follow him even on this difficult path, to finally reach eternal life.