Misconceptions of people about a samadhi - they think that it is not samadhi unless one sits cross-legged in padmasana, with folded hands and stops breathing

(from "Nectar Drops - Diary of Annamalai Swami"):

One day I asked Sri Bhagavan: Can one practice sahaja samadhi in the beginning stage itself? 

Sri Bhagavan: Aha! One can practice it very well. 

I asked: How to practice it? How to be in nirvikalpa samadhi? What are the types of samadhis? 

Sri Bhagavan: Samadhi is only one indeed. Not many kinds. Without any thoughts, abiding in the Self is nirvikalpa samadhi. Never forgetting one’s Self (during activity) is sahaja samadhi. Both are equally blissful.

(from "Conscious Immortality"):

Ananda is the bliss of not being disturbed by any mental activity or characteristics. 

There is a temporary bliss and a permanent one. The former state is called kevala samadhi, the latter is sahaja nirvikalpa samadhi, i.e. the state of nirvikalpa that has become natural. 

The jnani in kevala samadhi enjoys the bliss of samadhi arising from the cessation of mental activity and the disappearance of outside objects. But after a while, his bliss ceases as mental activities begin and there is no samadhi for some time. 

In sahaja, however, there is no relapse into mental activity and no consequent loss of bliss. The happiness is unbroken and ever-enduring. The body, senses, and mind may be operative, but the person is hardly conscious of the acts of the body.

========

(from "Letters from Sri Ramanasramam"):

Bhagavan spent a lot of time this afternoon freely conversing with devotees about many matters, and in between teaching them Advaita. Seeing that the conversation was  going on without end, a new arrival got up and asked,  “Bhagavan, when do you go into samadhi ?” All the devotees burst into laughter. Bhagavan also laughed. After a while,  he said, “Oh, is that your doubt? I will clear it, but first tell me what exactly is the meaning of samadhi ? Where should we go? To a hill or to a cave? Or to the sky? What should samadhihe like? Tell me,” asked Bhagavan. 

Poor man, he could not say anything and sat down quietly. After a while, he said, “Unless the movement of the indriyas and limbs stops, there cannot be samadhi, they say. When do you go into that samadhi ?” “I see, that is what you want to know. You think, ‘What is this? This Swami is always speaking. What Jnani is he?’ That is your idea? It is not samadhi unless one sits cross-legged in padmasana, with folded hands and stops breathing. There must also be a cave nearby. One must go in and out of it. Then people will say, 'This is a great Swami’. As for me, they begin doubting and say, ‘What Swami is this who is always talking to his devotees and has his daily routine?’ What can I do? This happened once or twice even before. People who had originally seen me at Gurumurtham and then saw me at Skandasramam, talking to all people and partaking in normal activities, said to me with great anxiety, ‘Swami, Swami, please give us darshan in your previous state.’ Their impression was that I was getting spoiled. What can I do? At that time (while in Gurumurtham) I had to live like that. Now I am obliged to live like this. Things happen the way they have to. But in their view, it is enough if one does not eat or talk. Then saintliness, swamitvam, comes on automatically. That is the delusion people have,” said Bhagavan.