everyday beliefs and customs
Why do Hindus observe a fast on specific days of the week?
The deity and the day
Each day of the week is connected to a deity in Hindu tradition. Monday is linked to Shiva, the god of meditation and transformation. Tuesday belongs to Hanuman, the devoted follower, and also to Durga, the fierce protector. Thursday is for Vishnu, the sustainer, and also for the guru, the teacher. People fast on these days as an act of devotion to the deity. The fast can mean eating nothing, eating only fruit or milk, or eating a simple meal without salt or spices. Some people fast the whole day, others break it in the evening. The choice varies by family and region.
Where it comes from
These practices appear in old texts called Vrata Kathas, stories about vows and fasts. The Skanda Purana, one of the Puranic texts, describes fasts linked to the days and the deities. Over time, these practices became woven into daily life. They are not required by any rule, but passed down through families and communities as a way to show respect and closeness to a deity.
What fasting is meant to do
In the tradition, fasting is seen as a way to focus the mind and show devotion. It is also believed to bring blessings from the deity. Some people say it brings health, peace, or help with a wish. Others fast simply as a regular practice, a rhythm in the week. The fast is often paired with prayer, reading stories about the deity, or visiting a temple.
A view from Ayurveda
Ayurvedic thought sees periodic fasting as a way to rest the digestion and clear the body. It is not seen as starving, but as eating lighter or less often. The idea is that giving the digestive system a break helps the body stay in balance. This is one reason some people fast on certain days, alongside the devotional reason.
In everyday life today
Many people still fast on their chosen day, whether they live near a temple or far away. Some keep it as a family habit passed down from parents. Others fast only on festival days or when they feel drawn to it. Some do not fast at all. For many in the diaspora, it is a way to stay connected to home and tradition. The practice changes from person to person and from one household to another.