There is a science behind it
… Among the newly introduced Sixteen Points, the matter of dry fasting was difficult for us to adjust to. Whole Time workers (Wis) were required to fast four days a month, on the full moon (Púrńimá), the new moon (Amávasyá) and the eleventh days after the new and full moon (Ekádashi) Just three days after Ekadashi come Púrńimá of Amávasyá, and the workers had to fast on all these four specific days. In the meeting, we workers were discussing how to manage this. How could we fast, then fast again just after three days, especially as we were to fast without water! We finally came to a consensus that if we have to fast four days a month, why not to do it on four Sundays or four Mondays, or any other day of the week? We reported out suggestion to the General Secretary (GS) and requested him to place the proposal before Bábá. GS dádá met Bábá and explained the problem to Him. Bábá summoned all of us, and we gathered in His small room. Most affectionately, Bábá said. "Do you think I am your enemy, that I prescribed those four fasting days in the Sixteen Points just to harass you or inflict trouble on you? No, no, not at all. There is a science behind fasting on Ekádashi, Amávasyá and Púrńimá days. You will have to fast on those days only." Then and there, Bábá explained in detail about the scientific reasons behind fasting on Ekadashi, Amávasy and Púrńimá. After this, we assured Bábá — "We will fast only on those prescribed days, and will follow the rules strictly."Read the story
— A worker at a workers’ meeting, Patna, November 1971, Ácárya Keshavánanda Avadhúta, “Reminiscences of Bábá: Memoirs”, “3.24. The Benefits of Fasting”

