The relevance of search is still the Holy Grail for any search application,

The search of the young today is more specific than the ancient search for the Holy Grail. The search of the youth today is for ways and means to make the machine -- and the vast bureaucracy of the corporation state and of government that runs that machine -- the servant of man. . . . That is the revolution that is coming. . . . It could be a revolution in the nature of an explosive political regeneration. It depends on how wise the Establishment is. If, with its stockpile of arms, it resolves to suppress the dissenters, America will face, I fear, an awful ordeal.

Iceland has already released the first pictures of an aeroplane that has shed everything calling it the holy grail.

You see, he was going for the Holy Grail. The boys all took a flier at the Holy Grail now and then. It was a several years' cruise. They always put in the long absence snooping around, in the most conscientious way, though none of them had any idea where the Holy Grail really was, and I don't think any of them actually expected to find it, or would have known what to do with it if he had run across it.

It would cause nothing but madness, Thomas thought. Men would fight for it, lie for it, cheat for it, betray for it and die for it. The Church would make money from it. It would cause nothing but evil, he thought, for it stirred horror from men's hearts,

Monty Python and the Holy Grail.