Swami Vishwananda tells you today:

Once there was a man. He was always searching for his Sadguru. So he went everywhere, but yet his heart was not satisfied. He met many masters, but yet his heart was not satisfied. Because this is also one quality from the devotee, when they meet the Sadguru, their heart shall feel. So he went around, he didn’t find. And one day he came around a saint and he said, he asked the saint “Listen dear Sir, I am in the search for my Sadguru. Could you please guide me?” And the saint closed his eyes, meditate for a little while and he said to the man “Listen my son, up on this mountain that you see there is many holy men staying up there. Tomorrow it’s a very good day. Invite all of them at your place. Invite them for lunch. With love and dedication serve them food and give them respect, everything. And as they are eating ask them a question. Take a twig from a tree, from any tree. Take two twig, two pieces of branch. And say to them “Tell me dear Sir, which twig, which branch is this tree belong to". So he did as the saint told him, he invited the saints and he served them food with lots of love and respect and he said to them, he showed them the pieces of the twig of the tree and he asked all of them “Dear Sir, tell me which plant, which fruit tree, this twig belongs to”. They all looked at it and say “It’s a mango branch”. The saint has said to the man “You do that, but contradict them. When they say it’s a mango, say not it’s a people”. So then the saint also said to him. “If you do that, if they go, get angry, they are not a Sadguru,but the one, which will stay calm and will say “Maybe, it is possible, that it is a people twig, this will be a Sadguru. So he did eventually as he was asking which twig is this plant belong to, the other gurus get very frustrated, furious and they said “Why you don’t see that it is a mango twig and you all telling us all the time this is a people twig. We tell you it is a mango”. And they all get very angry. And among them, there was one man, very simple, stay calm, he was eating his food and he look at him, when he asked him “What about you dear Sir?” reverencer. I said well “It can be possible that it is a people twig” very calm and very serene, very smiling he said this. You see the quality of calmness is very important. How can a master guide, if he is not calm? And this is the greatness of a Sadguru. No matter what happen he will always stay calm.