Samma Samadhi
Samma samādhi ( Pali saŋ + ā + dhā) means “put together” and is mostly translated into German as “right agreement”, “right concentration” or “right concentration”. It is the opposite of distraction or restlessness and is practiced in Buddhism together with the two other areas of the eightfold path wisdom ( prajna ) and virtue ( sila ), as they support one another. Right concentration includes right mindfulness and clarity of knowledge (sati-sampajanna), restrained senses, contentment (santutthi), liberation from the five obstacles ( nivarana ) and the first four states of immersion ( jhana ).
The unification of the mind can be achieved, for example, through calm meditation ( shamatha ) and through focused concentration on an object of meditation such as the breath (anapanasati).
"15. "After having overcome these five obstacles, the imperfections of the heart that weaken wisdom, he enters the first indentation, secluded from sensual pleasure, secluded from unwholesome states of mind, [...]
16." Again, bhikkhus, a bhikkhu enters the second indentation with the stilling of the initial and sustained devotion of the mind (towards the object of meditation), which contains inner calming and unity of the heart without the initial and sustained devotion of the mind, and dwells in it with rapture and bliss that comes from of concentration. [...]
17. "Again, bhikkhus, a bhikkhu with the fading of rapture, lingering in equanimity, mindful and clear in knowledge, full of physically experienced bliss, enters the third depression, from which the noble ones say, 'Blissfully abides he who is full of equanimity and mindfulness' and abides in it. [...]
18. "Again, bhikkhus, enter a bhi kkhu, with the overcoming of happiness and pain and the earlier disappearance of joy and sadness, enters the fourth indentation, which due to equanimity has neither pain nor pleasant and purity of mindfulness in it, and dwells in it. He sits there and penetrates this body with a pure, clear heart, so that there is no part of the body that is not penetrated by the pure, clear heart. [...]
Majjhima Nikāya 39 "