According to our Hindu calendar, Guru Purnima generally falls on a full moon day in the Ashadh a Hindu month (June to August).The Guru Purnima day is considered auspicious for the people who are willing to give a start to a spiritual learning or any kind of fine arts.This is an Indian and Nepalese festival exclusively dedicated to spiritual and academic teachers / gurus. This festival is traditionally celebrated by all Hindus, Jains and Buddhists, to pay their respects to their teachers/ gurus and express their gratitude towards them.
This is sacred day in the memory of the great sage Maharshi Veda Vyasa. All the Hindus are indebted to this ancient saint who edited all the four Vedas and wrote the 18 Puranas, Mahabharata, and the Srimad Bhagavatam. Veda Vyasa even taught Dattatreya, who is considered as the Guru of Gurus. On the day of Guru Purnima, all spiritual aspirants and devotees worship Vyasa in honor of his divine personage and all disciples perform a ‘puja’ of their respective spiritual Gurudevs.
Things we need to do on Guru Purnima day
Wake up at the Brahmamuhurta ( 4 a.m.) on this scared day and finish your daily routine .Meditate on the lotus feet of your Guru. Mentally pray on him for his Grace, and by which alone you can attain Self-realization. Do vigorous Japam and meditation in the early morning. After the shower, worship the lotus feet of your Guru, or his image or picture with flowers, fruits, incense, and camphor. Do fasting or take only milk and fruits the whole day. Then sit with all the other devotees of your Guruji and discuss with them the glories and teachings of Guru.. In the night, assemble again with all the other devotees, and sing the Names on praise of the Lord and the glories of your Guru.
The best and most important way to worship the Guru is to follow their teachings, to shine as the very embodiment of their teachings, and to propagate their glory and message.
According to our Hindu shastra this day is known as the beginning of monsoons. So all the farmers also look forward towards this day because they think offering Puja on this day will bring sufficient rain soon and the harvest for the season will be very good than the previous year.
This is the greatness of Guru Purnima.