Answer

“Porsi” usually refers to Porisi in Jainism, also written as Paurushi. It is a Jain pachchakkhān in which one refrains from food and drink for about one prahar after sunrise, which is roughly three hours. There is also Sāddhaporisi, which is for one and a half prahars. ( jainqq.org)

Explanation

In simple terms, porsi is a short fasting vow taken for self-restraint. In the Jain tradition, it means avoiding the four kinds of intake—food, drink, light refreshments, and mouth/breath refreshers—until the vow ends, usually by reciting the Navkār Mantra. ( jainqq.org)

Spiritual Understanding

The purpose of porsi is to train the mind in discipline, firmness, and detachment. Jain texts explain that even a small vow like this helps reduce attachment to food and strengthens inner control. ( jainqq.org)

Takeaway

Porsi is a Jain time-based fasting vow: a brief period of food and drink restraint, meant to support self-control and spiritual progress. ( jainqq.org)