Changes

(7) Muladhara—physical.

All these centres are in the middle of the body; they are supposed to be attached to the spinal cord; but in fact all these things are in the subtle body, sūkṣma deha, though one has the feeling of their activities as if in the physical body when the consciousness is awake.

Chakras

The thousand-petalled (head) lotus—Chakra or centre of the higher will and knowledge

The lotus in the forehead—Will, vision, mental dynamism

The lotus of the abdomen—Lower vital

The lotus at the end of the spine (Muladhara)—Physical consciousness

I never heard of two lotuses in the heart centre; but it is the seat of two powers, in front the higher vital or emotional being, behind and concealed the soul or psychic being.

The colours of the lotuses and the numbers of petals are respectively, from bottom to top:—(1) the Muladhara or physical consciousness centre, four petals, red; (2) the abdominal centre, six petals, deeper purple red; (3) the navel centre, ten petals, violet; (4) the heart centre, twelve petals, golden pink; (5) the throat centre, sixteen petals, grey; (6) the forehead centre between the eyebrows, two petals, white; (7) the thousand-petalled lotus above the head, blue with gold light around. The functions are, according to our Yoga,—(1) commanding the physical consciousness and the subconscient; (2) commanding the small vital movements, the little greeds, lusts, desires, the small sense-movements; (3) commanding the larger life-forces and the passions and larger desire-movements; (4) commanding the higher emotional being with the psychic deep behind it; (5) commanding expression and all externalisation of the mind movements and mental forces; (6) commanding thought, will, vision; (7) commanding the higher thinking mind and the illumined mind and opening upwards to the intuition and overmind. <ref>https://incarnateword.in/cwsa/28/the-system-of-the-chakras</ref>