The use of natural history is to give us aid in supernatural history: the use of the outer creation, to give us language for the beings and changes of the inward creation.
[T]hro this Air, this Ocean, and this Earth, All Nature quick, and bursting into birth. Above, how high progressive life may go? Around how wide? how deep extend below? Vast Chain of Being! which from God began, Ethereal Essence, Spirit, Substance, Man, Beast, Bird, Fish, Insect! what no Eye can see, No Glass can reach! from Infinite to Thee! From Thee to Nothing.... From Natures Chain whatever Link you strike, Tenth, or ten thousandth, breaks the chain alike.... All are but parts of one stupendous Whole: Whose Body Nature is, and God the Soul.
When I go into the garden with a spade and dig a bed I feel such an exhilaration and health that I discover that I have been defrauding myself all this time in letting others do for me what I should have done with my own hands.
Creative force, like a musical composer, goes on unweariedly repeating a simple air or theme, now high, now low, in solo, in chorus, ten thousand times reverberated, till it fills earth and heaven with the chant.