Concentration

So we are making our way slowing the 16 steps of mindfulness of breathing and we've come to the 11th step of developing samādhi or unification of the mind. And it's a lot easier for the mind to get unified – to gather together and become steady – when the mind feels like a calm and enjoyable place to be.
So Samādhi is the word used to cultivate our mind. We are unifying the mind, gathering it together. We are kind of getting out of the way, by not adding extra tension.