Chaturmaasya is described by Srila Prabhupada in the Purport to Text 169 of the
Fourth Chapter of the Madhya Lila of the Chaitanya Charitamrta as follows.
The
Chaturmasya period begins in the month of Asadha (June-July) from the day of
Ekadasi called Sayana-ekadasi, in the fortnight of the waxing moon. The period
ends in the month of Karttika (October-November) on the Ekadasi day known as
Utthana-ekadasi, in the fortnight of the waxing moon. This four-month period is
known as Chaturmasya. Some Vaisnavas also observe it from the full-moon day of
Asadha until the full-moon day of Karttika. That is also a period of four
months.
This period,
calculated by the lunar months, is called Chaturmasya, but others also observe
Chaturmasya according to the solar month from Sravana to Kartika. The whole
period, either lunar or solar, takes place during the rainy season. Chaturmasya
should be observed by all sections of the population. It does not matter
whether one is a grhastha or a sannyasi. The observance is obligatory for all
asramas.
The real
purpose behind the vow taken during these four months is to minimize the
quantity of sense gratification. This is not very difficult. In the month of
Sravana one should not eat spinach, in the month of Bhadra one should not eat yogurt,
and in the month of Asvina one should not drink milk. One should not eat fish
or other nonvegetarian food during the month of Kartika. A nonvegetarian diet
means fish and meat. Similarly, masura dhal and urad dhal are also considered
nonvegetarian. These two dhals contain a great amount of protein, and food rich
in protein is considered nonvegetarian. On the whole, during the four-month
period of Chaturmasya one should practice giving up all food intended for sense
enjoyment.
It has also been mentioned that this vrata is not observed during adhika maasa (Ref: Vaishnava Calendar)
Chaturmasya-vrata
:
Restricted
foods during the entire four months of Caturmasya:
· Eggplants (brinjals-baingan), tomatoes, loki, parmal/parval, urad daahl and honey.
Particular foods that are restricted during each of the four months:
· First month: No leafy vegetables, such as spinach, salads of all types,
cabbages of all types, kale, leafy herbs such as coriander, mint, parsley,
curry and powdered leafy herbs and teas.
· Second month: No yogurt
· Third month: No milk
· Fourth month: No Urad & Masoor daal, mustard oil or sesame seeds.
Foods that can be taken all days of the year, including Ekadasi and Caturmasya:
· All fruits (fresh and dried), all nuts and oils made from nuts.
· Potatoes, pumpkin, cucumber, radish, squash, lemon, avocado, olives, coconut,
buckwheat, all sugars.
· All pure milk products—(except yogurt during the 2nd month of Chaturmasya and
milk during the 3rd month).
For sannyasis, brahmacaris and vanaprasthas:
Shaving head and cutting nails is
to be done on full moon days.