It must not be forgotten that this old Sir Launfal is only in the by James Russell Lowell

It's a prose note—one of several that Lowell added alongside the verses of The Vision of Sir Launfal to clarify the poem's structure. You can think of it as a footnote that received a promotion to the main page.

The entire poem unfolds within a dream that young Sir Launfal experiences the night before his quest for the Holy Grail. In this dream, he ages, faces failures, and returns home humbled. When the real knight awakens, he feels transformed by the dream's lessons, having gained wisdom without enduring decades of true hardship.

Lowell borrowed the Arthurian frame to lend his social argument a sense of mythic significance. The Grail quest was a familiar symbol, representing the pursuit of something sacred and elusive. However, Lowell's take is that the Grail isn't hidden in a distant land — it's discovered in the humble act of sharing a cup of water with a leper at your own doorstep.

On the surface, it's the iron gate of Sir Launfal's castle. But "hard" also reflects the attitude behind the gate — a cold, stubborn refusal to let the poor enter. Lowell uses this phrase to connect the physical object to the moral failing it embodies.

In the dream, he finds himself back as an old, broke man who goes unnoticed by others. The underlying cause ties back to karma: in the past, he showed no kindness to beggars, and now he must face the same rejection he dished out. This is the poem's method of instilling empathy through personal experience.

Rushes are dried reeds or grasses that medieval buildings used to cover stone floors for basic insulation and comfort. Lowell references them to highlight that Sir Launfal, despite his wealth, is resting on something quite humble—an irony that establishes the poem's broader theme about the disparity between visible privilege and true value.

That true charity—giving freely and humbly to someone who needs it—is more spiritually meaningful than any grand religious quest. Sir Launfal dedicates his entire dream life to searching for the Holy Grail, only to discover it at last in the simple act of sharing his last crust of bread with a leper.

It was a mainstay in American school curricula for much of the 19th and early 20th centuries, but it’s assigned less frequently today. However, it still comes up in conversations about American Romanticism, Victorian-era social poetry, and Arthurian literature within the American tradition.