I think what scientific theories are always forgetting is the power of Love and Grace that's inside every human being. In every piece of reference in your post I see the emotion and constant wonder and love of every gardener for their work and the life on Earth. Science produces only techniques to increase monetary profits while using the face-mask of progress and of course, "human evolution". I think the big cities in which life is less and less possible are the perfect dream of those who hate nature.
Your post is beautiful in so many ways. It's informative, it's inspirational, philosophical, spiritual and also it's a pleasant read up.
Thanks for share those projects and goals in your future life, I'm sure you and your wife will find much wisdom and peace in your Garden.
Many hugs for you my dear Friend, and for everyone "there" with you. Much Love and Light!!