Working on your sadhana, spiritual exercises, spiritual practices [gives you] a sense of peacefulness. You begin to be totally peaceful. Things that used to disturb you [don’t] disturb you any longer. People that used to disturb you, used to give you trouble, they can no longer make you feel angry or upset. You feel an innate peace, the peace that passeth all understanding.

You feel very peaceful in whatever you do. It’s a beautiful peace. It’s a wonderful feeling. You are at peace with the world and at peace with the universe. You have reconciled yourself with the entire universe. With the mineral kingdom, with the vegetable kingdom, with the animal kingdom, with the human kingdom and you feel good about yourself.

Robert Adams (20th century American Advaita mystic)