94. _Or ope the sacred source_. In a letter to Dr. Wharton, Sept. 7,
1757, Gray mentions, among other criticisms upon this ode, that "Dr.
Akenside criticises opening a _source_ with a _key_." But, as Mitford
remarks, Akenside himself in his _Ode on Lyric Poetry_ has, "While I
so late _unlock_ thy purer _springs_," and in his _Pleasures of
Imagination_, "I _unlock_ the _springs_ of ancient wisdom."