Four Regulative Principles of Freedom.

https://iskconbangalore.org/blog/four-regulative-principles-of-freedom/

The Four Regulative Principles. There are four pillars upon which human society rests. These pillars are: mercy, truthfulness, austerity and cleanliness. Everyone appreciates these qualities.

Initiated devotees within the Krishna consciousness movement vow to chant a minimum quota of the Hare Krishna mantra each day on beads. They also take vows to avoid 1) intoxication, 2) illicit sex, 3) meat eating, and 4) gambling. These are commonly known as the "four regulative principles."

Source : http://krishna.com/info/four-regulative-principles

https://vrajvrindavan.com/4-regulative-principles-in-bhakti/

http://btg.krishna.com/need-regulated-life

Note by the author : the only substance that I use at the moment is coffee, all the rest I left behind, thanks to continously bhakti yoga and chanting the Maha Mantra. I intent to stop drinking coffee and tea as well. Feel free to join me with step-by-step eliminating the enemies of spiritual life.

In Truth,

Kristo(f) Gabriel

http://krishna.com/four-enemies-spiritual-life