holy grail something eagerly pursued or sought after.

☞ The literal Holy Grail was the cup or platter said to have been used by Christ at the Last Supper, which became the subject of a quest in Arthurian legend.

2014digbyHullabaloo Acquiring great wealth isn't the holy grail for most people-the vast majority just want to live a decent, fulfilling life and provide well for their children.