Guru is none other than the Self

Devotee:  Realisation is said to be helped by Guru’s Grace.

Ramana Maharishi:  Guru is none other than the Self.

Devotee:  Krishna had Sandipini for his Guru and so Rama had Vasishta.

Ramana Maharishi:  Guru is said to be external for the seeker. The in-turn of the mind is brought about by the Guru. Since the seeker is out-ward-bent he is advised to learn from a Guru whom he will in due course find to be the Self.