Analysis of A Spring Sonnet

Last night beneath the mockery of the moon
I heard the sudden startled whisperings
Of wakened birds settling their restless wings;
The North-east brought his word of gladness, "Soon!"
And all the night with wonder was a-swoon.
A soul had breathed into long-dreaming things;
Some unseen hand hovered above the strings:
Some cosmic chord had set the earth in tune.
And when I rose I saw the Bay arrayed
In her grey robe against the coming heat.
A pulse awoke within the stirring street--
The wattle-gold upon the pavements thrown,
And through the quiet of the colonnade
The smoky perfume of boronia blown.