Read chapter 8 of Shantideva’s Guide to the Bodhisattva Way of Life. Warning: it is not for the faint of heart. It may give you quite the kick in the pants and provide motivation to develop calm abiding. It also instructs in practicing the “exchanging self with others” meditation.
If you want to win mindfulness & alertness then you should develop that particular development of samadhi;
"And what is the development of concentration that, when developed & pursued, leads to mindfulness & alertness? There is the case where feelings are known to the monk as they arise, known as they persist, known as they subside. ...
Trees scream when you chop them down. How much more vegetables when we chew them?
But rest assured, everything you eat and everything that eats you will find Supreme Brightness in the end.
Samana(if I am not mistaken) , If by " without soil & harm" you mean "my traces of bad habbits should not be there in devotees" then stop making or even a desire to make others your student or student of any human( one who is not enlightened) cause as a student, we tend to follow our master's habbits. Dhamma(right teachings) is only teacher.
I think this is merely a reference to a typical aspect of religious life. Whenever we have a body of people who dedicate their lives to religious pursuits — be they clergymen or monastics — those people have no means of support other than the generosity of lay people. This binds the lay followers and the devotees together: the lay followers put their hopes ...
The word in question is dakkhiṇeyya.
Bhikkhu Sujato's translation
They seek outside of the Buddhist community for those worthy of religious donations.
ito ca bahiddhā dakkhiṇeyyaṃ gavesati;
Curiously the Pali text doesn't say "outside the Sangha" or "outside of the Buddhist community" -- it just says bahiddhā ("outside").
It all starts with food.
AN10.27:10.5: ‘All sentient beings are sustained by food.’ Becoming completely disillusioned, dispassionate, and freed regarding this one thing, seeing its limits and fully comprehending its meaning, a mendicant makes an end of suffering in this very life.
To live, we must eat. And since we have physical bodies, we need physical ...