What does Keats imply by immortal drink?

In “A Thing of Beauty,” Keats uses the phrase “immortal drink” as a metaphor to describe the enduring and life-sustaining quality of beauty. By “immortal,” he implies that beauty is timeless and eternal, unaffected by the passage of time. The “drink” symbolizes nourishment for the soul, suggesting that beauty continuously replenishes and refreshes the spirit, much like a drink that sustains life. Keats implies that beauty offers a perpetual source of joy and comfort, providing an everlasting refuge from life’s struggles and sorrows.

This question related to Poem 3 English Flamingo Class 12th NCERT.
From the Poem 3. A Thing of Beauty.
Give answer according to your understanding.