Abstaining from food is termed as;
Fasting - means abstinence.
sawm (صوم) in Arabic - also literally means "to abstain".
viradham (விரதம், நோன்பு) - determination to follow something for a specific time. It could be anything, not necessarily abstaining from food.
Upavas - 'upa' means 'to be near' and 'vas' means the abode of divinity. To understand this, we need to get a clarity on what this divinity and its abode is.
Abode of the divine
This is often thought to be a religious place, presence of a divine being, consecrated object, a remote place in hills and forests. Hence, people travel to such places and try to sit there in the name of upavas. Divine also took abode in every being that is still alive.
உள்ளம் பெருங்கோவில் ஊனுடம்பு ஆலயம் - திருமூலர்
(body is a temple, its life energy is the divinity - thirumoolar)
life-force (prana, பிராணன், உயிர்)
In every living being there is a life-force that exerts its influence throughout the body, but resides in specific location in different states of consciousness. When we are awake and alert, the life-force is centered in-between the eyebrows, hence vermilion (குங்குமம்) is used to cover this place in emotionally vulnerable people. This life-force (prana) is the essential divinity present in every living being. Food (water and air) is இறை (Iṟai) and the life-force that ingests it is இறைவன் (Iṟaivan, Divine). As long as it is in the body, we get the due respect as a person. The moment it leaves, the body is treated like an object.
For any physical and mental activity, the essential fuel is this life-force. Depending on the quality of the air, water and food consumed, there is essentially a gain or loss of life-force. When the consumed substance is closest to its natural form, we get the maximum life-force (prana) from it. Raw grains, fruits, vegetables, milk, wild waters, fresh air are rich in prana. There is a loss of prana with every step of processing these foods like husking, grinding, cooking and boiling. When more prana is spent in digesting the food than what is gained from it, it just clipped off few seconds from your lifetime. It might quench the thirst and hunger, may even provide some nutrition but the loss of prana is definite. This is the ultimate reason for aging (மூப்பு) and eventually the body ends ups lifeless, i.e., all prana depleted.
The life-force reducing things we do with the food, water and air are often justifiable for the situation we choose to live in. We boiled the water to get rid of health deteriorating pathogens in it, started cooking grains as our smaller intestine cannot easily digest them in raw form, but now we do it for the taste we've acquired for the cooked food and cook several vegetables and fruits that we could digest very well in raw form. We do condition the air in densely populated situation to cool it down and disinfect it as well. Thought it becomes necessary to detoxicate the substances we consume, loss of life-force is certain.
Being near to this life-force, i.e., focusing, acknowledging and consciously soaking in its influence is called Upavas (உபவாசம்).
What does food and fasting have to do with this life-force observing exercise?
Upavas is to be near the abode of divinity. i.e., to observe and attenuate the mental focus to the center of this life-force (prana, இறைவன்) between the eyebrows. To do this, all the life-force (prana) expenses like bodily movements, thought fluctuations and internal organ functionalities should be cut down. No food and water puts the liver and kidney on vacation straight away. With no food to digest, majority of organs has no functions. The sexual drive and pride starts dwindling drastically. Breath gets more shallow, heart starts pumping lesser blood and brain functions are reduced drastically. While all these sounds like someone is passing out, in reality, it is when the life-force crystalizes in between the eyebrows. The person attempting the upavas is just to keep the mental focus on this crystalizing life-force all the time allocated to practice this upavas. It could be 24 mins (நாழி), 48 mins (முஹூர்த்தம்), 3 hours (யாமம்) or 48 days (மண்டலம்). Once the crystallization happens, all signs of weakness is wiped out and rich rejuvenation of the body starts automatically.
But i feel thirsty and hungry. What to do then?
With very little practice, one can see that the minor disturbances like thirst and hunger starts evading away. The crystalized life force (பூரணம், pooran) in-between the eyebrows is an excellent care taker of the body. As long as the intestines are free from stool, lungs are free from phlegm and unwavering focus is perfected, the crystalized life-force starts secreting starch rich saliva that drips via the uvula (உள்நாக்கு). It is called (உமிழ்நீர்/அமிழ்தம், elixir). This is not some supernatural phenomena, it happens to any healthy person naturally, when starved. Normally, we don't know to differentiate between this elixir, phlegm and the common saliva which is the byproduct (எச்சம்) of the digested food. Hence, we might spit it or swallow it. It is totally wasted when done so. The starch in this special saliva can only be digested by the enzymes and pores in the mouth. Hence, it needs to be captured with the tongue and rolled, chewed and kept in the mouth for a minute before swallowing. The life-force (prana) gain from ingesting this is 100%, i.e., all the expelled life-force in generating it is gained back in total. Once ingesting this saliva is mastered, the body becomes self-sustaining (காய கர்ப்பம், kaya karpam). The person can go without any intake. This might sound like a fiction in west, but there is at least one person in every state in India who is living without any intake. In places like Himalayas, Western ghats, Varanasi and Tibet there are thousands of people living for decades without food/water. They voluntarily or involuntarily mastered this lossless life-force recycling.
Attaining this self-sustaining (காய கர்ப்பம்) state, at least temporarily is the goal of a upavas. In this state, body unanimously repairs and services all the organs and hence rectifies any health ailment (yes.. Any!).
காரமும் மிகுபுளிச் சாரமும் துவர்ப்பும்
கைப்போடே உப்போடே கசப்போடே கூட்டி
ஊரமுது உண்டு நீ ஒழியாதே அந்தோ
ஊழிதோ றூழியும் உலவாமை நல்கும்
ஆரமுது உண்டு என்னோடு ஆடேடி பந்து
அருட்பெருஞ் சோதிகண் டாடேடி பந்து !
- அருட்ப்ரகாச வள்ளலார்
Labels:Purpose, Esoteric, Science śāstra