Guru is removing the pitfalls and obstacles encountered while doing meditation. Guru will eradicate one's anger, egoism, prejudices, selfishness and other negative qualities. Then one will have rapid spiritual progress. This is known as Guru Upadesam. Some worthy and ardent devotees have already got this from Guru Adigalaar.
Guru removes the veil of ignorance and blesses the ignorant souls.
Realizing God through a Guru is much easier. One ordinary boy Bangaaru was chosen by God to be the Guru for this world. His words are My words, not only in Oracles but in day to day life too. Simple His attire, ordinary his speech, no ordinary man would believe that He is the reincarnation of Goddess AdhiParaSakthi.