Fasting as a means of celebrating is as old as the world.  Much has been written about fasting and health benefits associated with it.  I encourage you to develop some curiosity about it (Dr. Fuhrman’s writings are a good place to start).  My use of the term “fast” refers to a continuum of eating restrictions ranging from complete food-free, water-only fasting to various dietary restrictions (as you would find, for example, in the tradition of Lent). 

Before undertaking fasting a) read up on the health benefits of fasting, and b) consult your physician about whether fasting (of any degree) is safe for you.  Select a calendar, personal, anniversary-based or spiritual/religious holiday, commit to a fast (of whatever definition that would be appropriate for your level of health), prepare for the fast, and conduct it on the day in question.  If you find fasting on a holiday to be a more meaningful experience than feasting on a holiday, consider a yearly tradition of having at least one fast-not-feast holiday.  Get stuffed on the spirit of the occasion!  Notice how the fast leverages your overall mindfulness.