I could resonate with the point"(especially those who lost their link to the natural environment and came to live in crowded, stressful living conditions)" nature makes us feel confident and share with others making us feel one with whole, while crowded, stressfulliving conditions induce competition and shrinking from whole to self. Guess gaining knowledge of stressful conditions and handle situation in right way could lead to whole, unfortunatelywe find it difficult to handle condition with right approach because of the fear of being wrong or lack or knowledge, complications etc.
On Nov 13, 2019 Surya wrote :