Yes, Patanjali's Yoga Sutras mention different stages of Samadhi.
Swami Vivekananda's Raja Yoga on Patanjali's Yoga Sutras:
वितर्कविचारानन्दास्मितानुगमात् सम्प्रज्ञातः ॥१७॥
17. The concentration called right knowledge is that which is followed by reasoning, discrimination bliss, unqualified egoism.
Samadhi is divided into two varieties. One is ...
Panini has written a great treatise called Ashtadhyayi on Sanskrit Vyakarana (grammar). Katyayana has written Vartika i.e commentary on Panini's Ashtadhyayi which became core part to Sanskrit grammar. Patanjali further elaborated on Ashtadhyayi along with Vartika of Katyayana in his work called Mahabhashya which discuss selected verse of Astadhyayi ...
Maharishi Patanjali was a saint who is believed to have lived some time during the 2nd century BCE.
He was contemporary of Puṣyamitra Śuṅga (185 – 149 BCE : the founder and first ruler of the Shunga dynasty). He was the priest in the Ashwamedha yajna performed by Puṣyamitra Śuṅga.
He is known for his treatise on Yoga, entitled
Patanjali Yoga Sutra
The questions are:
When it comes to Yoga, I gather chanting mantras is an integral component. So is it really called Yoga when mantras are not chanted ?
Also from what I gather is that there Asana (which is projected as Yoga) is just one of the eight limbs of Ashtanga Yoga. Is it ok to
assume one may not derive the intended benefits by ignoring ...
Maharshi Patanjali systematized the yogic practices, wrote the Sutra, but the yogic practices predate him.
The historical origin of Yoga is a subject of scholarly debate. A definite answer is yet to be found. Mainly there are two schools of thoughts.
A. Vedic origin - The practices have developed in a linear fashion through the Upanishads to the Buddhist ...
Samadhi is of one type only, here is what Sri Ramana Maharshi said on the kinds of Samadhi:
There is only one kind of samadhi, not many kinds. To remain temporarily subsided in the Reality, without any thought, is nirvikalpa samadhi. Permanently abiding in the Self without forgetting it [even while being active and with eyes open] is sahaja samadhi. Both ...