Granthis (Obstacles in out path)

There are three form of stuckness

1. Brahma Granthi :- The feeling of separateness, attachment to ones own desires and ego, without regards for others- centered in the physical body (and Muladhra Chakra or Root Chakra) and covering of the Food sheath or Annamaya Kosha.
 
A Person at this level sees only diversity, causing the obstacles, of restless desires and fear.

2. Vishnu Granthi :- Attachment to doing good - centred in the body of Prana( and Annahata Chakra, the heart), the covering of the Pranamaya Kosha.

A Person in this level sees the Unity in diversity, seeing the good in others but gets caught up in diversity. Attachment to the cosmic good, and the desire to serve humanity, attachment to tradition and idealism.

3. Rudra Granthi :- Attachment to knowing. centred in the mental bodies of the knowledge or Jnana(and Ajna Chakra), the covering of the Manomaya and Vigyananamaya Kosha)

A Person at this level goes beyond diversity to percieve unity. But the obstacle is attachment to I- Consciousness, keeping ones awareness of self as a drop, holding back from the ocean.

when the three Knots are united the Yogi percieves reality as pervaded by divine energy and becomes established in the body of bliss (Anadamaya Kosha), and is able to move even beyond that. This happens when the Kundalini starts rising piercing the Chakras.