Question

what does Keats consider an endless fountain of immortal drink and why does he call its drink immortal​

Answer 1

Answer:

Keats considers beauty, in all its forms, which is God's greatest gift to man as an endless fountain of immortal drink. He calls it immortal because the beauty bestowed by God is everlasting and perennial and men can bask in its glory forever.

Answer 2

Answer:

Things of beauty are just like the immortal drink of the gods that flow continuously and never die. Just as the endless fountain of immortality is an elixir of life, similarly, things of beauty are constant or perennial in providing the everlasting joy, motivation and bliss to humanity.