The first full moon after the summer solstice in the month of Ashadha (July-August), is known as Guru Purnima. This sacred day marks the first transmission of the yogic sciences from Shiva – the Adiyogi or first yogi – to his first disciples, the Saptarishis, the seven celebrated sages. Thus, the Adiyogi became the Adi Guru or first Guru on this day. The Saptarishis carried this knowing throughout the world. Even today, every spiritual process on the planet draws from the spine of knowing created by Adiyogi.
Why Celebrate Guru Purnima??
Sadhguru: In Indian culture, Guru Purnima was always recognized and celebrated as the day when new possibilities opened up for the human race. For a spiritual seeker, this day is like a boon from nature. Guru Purnima is seen as the best time to receive the Grace of the Guru and make yourself receptive to the process. This is a good time to earn that attention from the Grace. Grace is like manure for growth, that a human being can catapult himself to another dimension of existence, capability and possibility.