Guru Purnima is celebrated in honor of Guru Veda Vyas. He is considered the Guru of Hindu Dharma, who wrote the Brahma Sutras, the eighteen Puranas and the Mahabharat. Veda Vyasa made several contributions to the Vedic literature. "He divided the Veda into four, namely Rig, Yajur, Sama and Atharva. The Itihasa(histories, Mahabharatha,Ramayana, Bhagavatha Puranas are said to be the fifth Veda."
It was this dividing and editing that earned him the honorific title "Vyasa" (vyas = to edit, to divide).
The festival is common to all spiritual traditions in Hinduism, where it is dedicated to the expression of gratitude towards the teacher by his/her disciple.
Guru is the important part of our life, guru plays a vital role in boosting the aspirant frequently, when he becomes despondent or simply runs out of steam. Gurus can lead one on the path of happiness and help in attaining salvation from worldly existence. The “Gurus” are considered to represent God himself. Guru is the one who dispels the darkness of ignorance and infuses the light of awareness into our lives.
Guru Brahma Gurur Vishnu,
Guru Devo Maheshwaraha.
Guru Saakshat Para Brahma,
Tasmai Sree Gurave Namaha.
Translated it means, “My salutations to the Guru who is Brahma, Vishnu and Maheswara. The Guru is Parabrahma incarnate”
Brahma, Vishnu , Mahesh(Shiva) is the hindu Holy Trinity.
The spiritual Gurus are revered on this day by remembering their life and teachings.
Seekers try to get as much opportunity to do Satseva of the Guru as possible during this period. As the Guru principle is 1000 times more active during this period, when compared to any other day during this year, the satseva done on Guru Poornima fetches substantial grace of the Guru for their spiritual progress.
The relationship between the Guru and the Disciple is considered very sacred. This relationship is purely spiritual in nature and is independent of age of the two. It is based on maturity of Gyan (Spiritual Knowledge) and Shradha (Spiritual Practice). The only awareness that a Disciple should foster is, ‘I should be uplifted spiritually’. The Guru too harbours only one thought, ‘May this Disciple be uplifted’. Relationships other than Guru-Disciple are bound by worldly restrictions wherein the ego constantly manifests itself while Gyan and other Shradha are spiritual .
My Salutations to Mohan my Guru-Bandhoo. Salutations to Rahul & other members from whom I have learned so much. you are my Guru-Bandhoo too. 
Thanks to all Seekers/students who have given me respect of a Guru.
My Blessings to all members.
