Is it not possible to have the vision of God without the help of a guru?

Mr. Choudhury: "Revered Sir, is it not possible to have the vision of God without the help of a guru?"

Sri Ramakrishna: "Satchidananda Himself is the Guru. At the end of the sava-sadhana, just when the vision of the Ishta is about to take place, the guru appears before the aspirant and says to him, 'Behold! There is your Ishta.' Saying this, the guru merges in the Ishta. He who is the guru is also the Ishta. The guru is the thread that leads to God. Women perform a ritualistic worship known as the 'Ananta-vrata', the object of worship being the Infinite. But actually the Deity worshipped is Vishnu. In Him are the 'infinite' forms of God.

(To Ram and the other devotees) "If you asked me which form of God you should meditate upon, I should say: Fix your attention on that form which appeals to you most; but know for certain that all forms are the forms of one God alone.

"Never harbour malice toward anyone. Siva, Kali, and Hari are but different forms of that One. He is blessed indeed who has known all as one.

"The body does not endure without a trace of lust, anger, and the like. You should try to reduce them to a minimum."
Looking at Kedar, the Master said: "He is very nice. He accepts both the Absolute and the Relative. He believes in Brahman, but he also accepts the gods and Divine Incarnations in human form."

Source: Gospel of Sri Ramakrishna