“Grant that one of these two sons of mine may sit at your right and the other at your left in your kingdom.” (Matt. 20:21).
“You don’t know what you are asking."This clearly indicates that the woman is not realizing what this would curtail. She doesn't realize the work needed and the change of heart needed for one to return to the spiritual realm. And she doesn't realize the process that is required.
In other words, the Supreme Being doesn't want us to return to the spiritual realm unless we are ready. The citizens of the spiritual realm want to be with the Supreme Being. They love Him and want to please Him.
But because love requires freedom, the Supreme Being gave all of us the freedom to love Him or not. Those who didn't want to love Him became self-centered (due to the void created by not loving God) and were sent away from the spiritual realm: We were given physical bodies within the physical realm. These physical bodies allow us not to see the Supreme Being.
Within the physical realm we can forget God and pretend He doesn't exist.
This means returning to the spiritual realm requires a significant change of heart. Ones self-centeredness must be healed before one can return to the spiritual realm. Otherwise, it would be like being a bull in a china shop for a self-centered person to return to the spiritual realm.
This is why many imagine the spiritual realm as a nice place - but absent of God. Michelangelo painted heaven as a place where people sat around playing harps and such - while God sort of floated above them. Others have imagined a place where people are relaxing in lawn chairs sipping lemonade.
Both of these mistaken depictions of the spiritual realm miss the reality: That in the spiritual realm, the Supreme Being is the center. It is a place where everyone is participating in a particular loving relationship with God, and their lives are focused upon pleasing God and His companions. There is much activity surrounding these relationships.
Can you drink the cup I am going to drink?”What is the "cup" - translated from the Greek word ποτήριον (potērion) meaning "cup" or "drinking vessel" when used literally. According to the lexicon, when ποτήριον is used metaphorically, it means, "one's lot or experience, whether joyous or adverse, divine appointments, whether favorable or unfavorable."
“My Father, if it is possible, may this cup be taken from me. Yet not as I will, but as You will.” (Matt. 26:39)
This does not come easily. It is not a matter of just going to church on Sundays and proclaiming we are saved. To 'graduate' back to the spiritual world, we have to make a complete change in direction and focus, where we seek to please the Supreme Being rather than seeking to please ourselves.
In this state, and in this state only, we may return home to the spiritual world and resume our loving relationship with God. It is a matter of loving service. This is why Jesus also said:
“Not everyone who says to me ‘Lord, Lord,’ will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven.” (Matt. 7:21)
(For a translation of Jesus' statements from the Book of Matthew without institutional sectarian influence, see the Gospels of Jesus - translated from the original Greek texts.)