Some Cayce quotes to get you started:
... he who understands nature walks close with God. (1904-2)
God seeks all to be one with Him. And as all things were made by Him, that which is the creative influence in every herb, mineral, vegetable, or individual activity is that same force ye call God - and seeks expression! Even as when God said, "Let there be light," and there was light. For, this is law; this is love. (294-202)
One that fills the mind, the very being, with an expectancy of God will see His movement, His manifestation, in the wind, the sun, the earth, the flowers, the inhabitant of the earth; and so as is builded in the body, is it to gratify just an appetite, or is it taken to fulfill an office that will the better make, the better magnify, that the body, the mind, the soul, has chosen to stand for? and it will not matter so much what, where, or when -but knowing that it is consistent with that - that is desired to be accomplished through that body! (341-31)
For the love of nature grows, and is akin to God. For all nature manifests life, and life IS the manifestation of God. (1968-1)
(Q) A move to the country is contemplated.
(A) (Interrupting) By all means, move; for the closer associations with nature, nature's storehouse, and to the God of nature that is within and may manifest in self, will bring an awakening. (2986-1)
Have more and know more of nature and of God's outdoors, rather than man's. See nature not "in the rough," then; rather in the expressions of Life! For each blade of grass, each blossom, each tree, each crag, each mountain, each river, each lake is as a gift from the Creative Forces in man's experience that he may know more of the love of God. And as a soul, as a developing body then sees in the creatures, in the various kingdoms as THEY care for their young, as they are selective in their mating, as they are mindful of the influences and the environs, learn from these Nature's lessons or God's expression to the children of men; that He indeed is in His holy temple and is MINDFUL of man's estate - if MAN minds the LAWS of nature, of God. For love is law, love is God. (1248-1)
Also in its application of self in voice, IN song, especially in those of the pastoral nature, the entity may bring joy - the desires for the awakening of self to nature, and nature's God. (1073-4)
… all natural forces are of one source. So is self! and so is self's mental vision, and attuning self to these - making one's will one WITH that Creative Energy - out of same grow the WONDERFUL things in man's MIND, or the beautiful things as come in nature; for it IS Nature's and God's law. (2756-1)
… more and more that desire which is latent and manifested in the present of wanting to be quiet, to be close to nature, to keep close to God in the manifestations in nature. (2988-2)
… for that Spirit that is termed or called God, Nature, is Life in its essence. (326-3)
For, as will be seen, those activities of the entity throughout its sojourns in the earth have been in those fields where man and God meet as one - in nature. (1151-1)
For, the peoples then understood - even better than they do today - how that the heavens declare the glory of God, and as to how nature SINGS His praises in the rebirth at each period, each cycle, for its unfoldment and growth; as manifested in entities that are - as man - a manifestation of HIS love in the earth. (2438-1)
First, as indicated, it is necessary that there be faith in the divine. What is life itself? That influence or force one calls God, or nature. (3071-1)
For, the entity was only just coming to that awareness of beauty of associations, of friendships, of the beautiful outdoors, nature, flowers, birds, and of God's manifestations to man of the beauty, of the oneness of purpose with individual activities in nature itself … (3162-1)