Sri Ramkrishna said to M

1) Sri Ramakrishna said to M.: 

"I have observed that a man acquires one kind of knowledge about God through reasoning and another kind through meditation; but he acquires a third kind of

Knowledge about God when God reveals Himself to him, His devotee. 

If God Himself reveals to His devotee

the nature of Divine Incarnation

-how He plays in human form-, 

then the devotee doesn't have to, reason about the problem or need an explanation. 

2)"Ramakrishna said to M.,

 'A man needs the grace of God to fix his whole mind on Him.' In other words, it is not as easy as Girish thought. When Girish returned shortly after, the Master resumed the conversation, referring to a person who could live in the world but not be stained by it, like a mudfish who can live in the mud but not have a trace of mud on its body.

Girish: 'Sir, I don't understand all this. You can make everyone pure and unattached if you want to. You can make everyone good, whether he is a worldly man or a sannyasi. The Malaya breeze, I believe, turns all trees into sandal-wood.'

Master: 'Not unless there is substance in them. There are few trees, the cotton-tree for instance, which are not turned into sandal-wood.'

Girish: 'I don't care.'

Master: 'But this is the law.'

Girish: 'But everything about you is illegal.' [M. adds here that the devotees were sitting there amazed at this conversation].

Master: 'Yes, that may be true. When the river of bhakti overflows, the land all around is flooded with water to the depth of a pole.'

-Prabuddha Bharata

Do you know what it is like? 

Suppose a man is in a dark room. He goes

on rubbing a match against a match-box and all of a sudden light comes. 

Likewise, 

if God gives us this flash of divine light, all our doubts are destroyed. 

Can one ever know God by mere reasoning?"

- The Gospel of Sri Ramakrishna.