Good post, but rather shallow. Improving immunity be it physical or mental is a journey that takes time and patience. Inner peacefulness is not immunity but the realisation of acceptance that leads to calmness.
Earlier in my life I would reflexively kill an insect in my home. But as I aged I changed. Starting several years ago I release all insects in my home including at different times: yellow jackets which I somehow coaxed to the front door from upstairs and saw them out. I felt & feel much better about this humane approach for obvious reasoning,
On Jan 4, 2023 Peter wrote on Look Around In Wonder, by David Griswold: