Ashtangyoga contains 8 parts in yoga. Ashta means 8.
Ashtangyoga - Yam Niyam Aasan Pranayam Pratyahar Dharana Dhyan Samadhi
These are eight parts of Ashtangyoga. The saint Dnyaneshwar has taken Samadhi. It is very difficult to go upto last stage of Ashtangyoga. Common man can not go upto that stage. Did Dnyaneshwar followed all these steps?