The pournami vrathams during the months of Adi, Karthigai, Vaigasi and Maasi are supposed to be special.
The ideal time to wake up, take bath and offer prayers according to hinduism is during Brahma muhurtham(4:00-6:00 a.m).
Several other poojas are also done along with Pournami vratham. Satyanarayana or Satya Narayana Puja is another important Pooja performed on the Purnima day.
What we should do:
Even if we are not able to follow it everyday, due to our lifestyle, atleast during this day on the special months mentioned above, it is recommended that we wake up and finish bathing before 6:00 a.m, to get the full grace of God, with sincere early morning prayer.
Some people do fasting (Upavasam) on this day. The Pournami Fasting begins at Sunrise and ends after sighting the Moon. Most people only take food after seeing the moon or after evening prayers.
We can have fruits, water and milk during the Upvas.
Cereals and Salt are to be avoided in this Upvas.
These are the things to be done during Pournami Vratham.
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THE first thing is you have to take bath early in the morning,offer prayers,have fast of food but you can take fruits,water,milk and break your fast after sighting the moon...good to follow the tradition which is our own and passing to the future generation.