The relationship with your guru shouldn’t be just a formal one. You should allow him to know you. So unless you expose yourself to him, he cannot know you. Just as you expose yourself before the x-ray and the x-ray tells you that the bone is broken, in the same way, don’t maintain reservations with your guru.
There you are like a child and he should be like a mother. He should not be like a God, because he will punish you otherwise. God punishes, that is what we are told. I don’t know but a mother will never punish. Even if she gives a slap to a child, she starts crying after that, because for the mother, the child is an emblem of love.
A disciple is a child, not just a devotee, and guru is like mother. If this relationship is established between the two, there will be some communication. Then, like a doctor, he knows what your malady is and he gives you the prescription, ‘You can practise kriya yoga.’ After some time, kriya yoga does not work. You tell your guru, ‘Kriya yoga does not work.’ He will think and say, ‘Okay, practise only hatha yoga.’ This is why the relationship with guru has to be established on a very non-religious basis.