Answer:
He is assuring Adam and Eve that it is still possible to live a virtuous life outside of the garden of Eden after they had been driven out of it.
Step-by-step explanation:
John Milton's epic poem "Paradise Lost" narrates the story of the Biblical story of how Adam and Eve came about to be driven out of the garden of Eden. This poem is an attempt by the poet to "justify the ways of God to men".
In Book X of the poem, the lines show the archangel Michael comforting and assuring the humans Adam and Eve after their exile. God immediately knows that they had disobeyed His order of not eating from the "Tree of Knowledge", thus leading to their expulsion from the garden. The lines spoken by Michael gave a sense of hope for them. He told them that as long as they have the virtues of "Virtue, Patience, Temperance,Love", they lack nothing to live their life as they had done in the Garden. Though they may be driven out of the place, they still possess the qualities that could help them lead a virtuous life. And just as Satan still feels like he's in Hell even though he was inside the Garden, they can also still have the feeling of living in "paradise" even after leaving "this Paradise", as the wisdom they had acquired before will give them "A paradise within thee, happier far".