Christian Classics Ethereal Library
https://www.ccel.org/h/herbert/temple/Easterwings.html
Images of the various printed and handwritten editions of "Easter Wings."
An Explication of George Herbert's "Easter Wings" Through Language and Shape
http://plato.acadiau.ca/courses/engl/rcunningham/2283-06/Paper1Web/Elliot_L/Text_Template%204.htm
A short essay describing how the shape of "Easter Wings" influences its meaning.
George Herbert
https://www.poetryfoundation.org/poets/george-herbert
Poetry Foundation introduction to the life and times of Herbert.