Question

read the source of the allusion.
during the middle ages, knights sought to find the holy grail, the cup that was supposedly used by jesus at the last supper.
what is the meaning of the allusion in the sentence below?
an auction house representative described bob dylans handwritten lyrics, worth over a million dollars, as \the holy grail of lyrics.\
something that increases in value over time
something desired but hard to obtain

Explanation:

The source explains that the Holy Grail was sought by knights (desired) and hard to find (hard to obtain). In the sentence, Bob Dylan’s lyrics are called “the holy grail of lyrics” – they’re valuable and likely desired but hard to get (like the Grail was for knights), not just about increasing in value over time.

Answer:

something desired but hard to obtain