I think for most of us, there's a tendency to consider the "Day of the Lord", "Last Days", "End of the Age", etc... with fear and anxiety.
The terms refer to a period of severe disruption to the status quo.
It's helpful to consider that these days are the "righting of a ship". Or better yet, they lead to "the restoration of all things" (Acts 3:21). It is, after all, Jesus who breaks the seven seals that lead to the seven trumpets that result in the seven bowls of God's wrath (Rev 5:9, Rev 6:1).
And to what end?
In the last days the mountain of the house of the LORD
will be established as the chief of the mountains;
it will be raised above the hills,
and the peoples will stream to it.
And many nations will come and say:
“Come, let us go up to the mountain of the LORD,
to the house of the God of Jacob.
He will teach us His ways,
so that we may walk in His paths.”
For the law will go forth from Zion
and the word of the LORD from Jerusalem.
Then He will judge between many peoples
and arbitrate for strong nations far and wide.
Then they will beat their swords into plowshares
and their spears into pruning hooks.
Nation will no longer take up the sword against nation,
nor will they train anymore for war.
And each man will sit under his own vine
and under his own fig tree,
with no one to frighten him.
For the mouth of the LORD of Hosts has spoken.
Though each of the peoples
may walk in the name of his god,
yet we will walk in the name of the LORD our God
forever and ever.
“On that day,” declares the LORD,
“I will gather the lame;
I will assemble the outcast,
even those whom I have afflicted.
And I will make the lame into a remnant,
and the outcast into a strong nation.
Then the LORD will rule over them in Mount Zion
from that day and forever.
And you, O watchtower of the flock,
O stronghold of the Daughter of Zion—
the former dominion will be restored to you;
sovereignty will come to the Daughter of Jerusalem.”