SAHASRARA CHAKRA 

Sahasrara Chakra is the abode of Lord Siva. This corresponds to Satya Loka. This is situated at the crown of the head. When Kundalini is united with Lord Siva at the Sahasrara Chakra, the Yogi enjoys the Supreme Bliss, Parama Ananda. When Kundalini is taken to this centre, the Yogi attains the superconscious state and the Highest Knowledge. He becomes a Brahmavidvarishtha or a full-blown Jnani.

The word Sahasradala-Padma denotes that this Padma has 1000 petals. That is, one thousand Yoga Nadis emanate from this centre. There are different opinions about the exact number of petals. It is quite sufficient if you know that innumerable Nadis proceed from this centre. As in the case of other Chakras, the vibrations that are made by the Yoga Nadis are represented by the Sanskrit letters. All the 50 letters of the Sanskrit alphabet are repeated here again and again on all Yoga Nadis. This is a Sukshma centre. The corresponding centre in the physical body is in the brain.

The term Shat-Chakras refers only to the chief six Chakras, viz., Muladhara, Svadhishthana, Manipura, Anahata, Vishuddha and Ajna. Above all these we have Sahasrara Chakra. This is the chief of all the Chakras. All the Chakras have their intimate connection with this centre. Hence this is not included as one among the Shat-Chakras. This is situated above all the Chakras.

(AJNA CHAKRA) 

Ajna Chakra is situated within the Sushumna Nadi and its corresponding centre in the physical body is at the space between the two eye-brows. This is known as Trikuti. The presiding deity, Paramasiva (Shambhu), is in the form of Hamsa. There is Goddess Hakini (Sakti}. Pranava xdvng (Om) is the Bijakshara for this Chakra. This is the seat of the mind. There are two petals (Yoga Nadis) on each side of the lotus (Chakra) and the vibrations of these Nadis are represented by the Sanskrit letters:xdvng (Ham) and (Ksham). This is the Granthi Sthana (Rudra Granthi). The Chakra is of pure white colour or like that of the fullmoon (on the Purnima day). Bindu, Nada and Sakti are in this Chakra. This Chakra corresponds to Tapo-Loka. The corresponding centre in the physical body is at the Cavernous Plexus. He who concentrates at this centre destroys all the Karmas of the past lives. The benefits that are derived by meditation on this Chakra cannot be described in words. The practitioner becomes a Jivanmukta (liberated man while living). He acquires all the 8 major and 32 minor Siddhis. All Yogis and Jnanis too concentrate to this centre on the Bijakshara, Pranava ! (OM). This is called Bhrumadya Drishti (gaze at the space between the two eye-brows)