Sonnet 78: So Oft Have I Invoked Thee for My Muse

SONNETCAST – William Shakespeare's Sonnets Recited, Revealed, Relived

Sonnet 78 is the first in a group of nine sonnets that concern themselves almost entirely with the apparent arrival on the scene of someone else who is now writing poetry for Shakespeare's young lover, vying for his attention and possibly obtaining his patronage, which is why these poems are collectively known as the Rival Poet Sonnets.

Strictly speaking, Sonnet 81 does not mention this rival and could therefore in theory be excluded from the group, but as it sits where it does and, like the others, talks about Shakespeare's own poetic powers, it is generally accepted as part of it.

Sonnet 78 also happens to mark the beginning of the second half of the collection of 154 sonnets originally published in 1609, and thus ushers in a major new phase in the numbered sequence, although whether or not this is deliberate, we cannot tell. What we do know from this sonnet and its companions is that here begins a whole new crisis for William Shakespeare, which will have a profound and lasting effect on him and his relationship with the young man.