It is for joy both now and not yet fully but fully yet to be.
Some may have seen this before ; - ) …
Jesus’ motivation is also explicit and clear, and it was forward looking³: “for the joy that was set before him endured the cross, despising the shame.” Hebrews 12:2. That joy is us(!), if you have been adopted into his family.
But we can also certainly have joy here and now, but not without some trials to make us stronger and to test our faith. I just posted about one of the more severe trials that had me prostrate pleading for help. But I was joyous after! There have been other difficult trials in the three decades since and in the decades before as well, but God is faithful and worthy of our trust like the loving Father he is.
If any don’t know that experientially (or ‘experimentally’ as Spurgeon would say in his nineteenth century English ; - ), either from the internal witness of the Holy Spirit in your heart and mind (required) or the optional but definitely to be desired way cool experiences of his providences externally confirming and further establishing the former, then maybe some prostrate pleading is in order.
The picture of the crowd gladly cheering for Sarah Smith in The Great Divorce is undoubtedly just a shadow of what we can anticipate.