Patanjali’s Yoga Sutra
talks about the triad of Dhaarana(concentration): is binding the mind to a place.
Dhyaana(meditation):Continuity of the mind in an undisturbed plane
Samadhi: when dhyaana bears the fruit of knowledge which comes to shine forth as the object alone
Samyama:
The triad held at the one place is called Samyama.
Prajna:
From the mastery of that (samyama) , the light of knowledge (prajna),
From samyama on the Sun, knowledge of the seven worlds dawns,
culminating in the Satya-loka.
