The ninth form of the Divine Mother is Siddhidatri Devi......

  The ninth form of Maa is Siddhidatri, which is also an aspect of Mahalakshmi. She is seen sometimes sitting on a lotus or sometimes mounted on a lion. She is four armed. After having performed the worship to the other forms, the devotee then starts the worship to Her. She is One with the forces of sustenance and salvation of Mahavishnu and so She is the One who delivers all forms of success. “Siddhi” means power. For “siddhi” to become “riddhi” (prosperity) one needs “buddhi”, i.e. intelligence.  So Mother Siddhidatri gives also wisdom. Once we have our mind surrendering to the Divine, She blesses us with ultimate success.

Sri Swami Vishwananda talks about the eighth form of Maa called Mahagauri Devi.....

 The Divine Mother's eighth form is known as Mahagauri. Her complexion is totally white. Her garments are also white. White symbolises the purity of the true Self which is without any stain or impurity. She is mounted on an ox and has four arms.  Parvati had turned dark after doing intense penance for obtaining Lord Shiva as her husband. Shiva then bathed Her in the Holy Ganges, She turned fair and became known as Mahagauri.  Due to the Mother’s Grace the devotee crosses the barrier of limitation and attains supernatural salvation. He is relieved from all his pains, fatigue and previous sins. The devotee wins pure virtue and becomes ever free.

Sri Swami Vishwananda talks about the seventh form of the Divine Mother called Kalaratri Devi.....

 Maa´s seventh form is Kalaratri. Her complexion is as dark as the night, symbolizing infinity. Her cascading hair is let loose and she is seen wearing a garland that radiates light as bright as lightning. She is mounted on an ass. She has four arms. Although she has a menacing appearance, her devotees need not fear her. In this form Devi is always ready to give anything you ask. She accepts everything from the devotee, not only the good, but all the bad, negative qualities. She just absorbs them, so that we can be free, free from the little demons that we create in our mind and who are all jumping left and right.

Sri Katyayani Devi is the sixth form of the Divine Mother.....

Goddess Katyayani is the sixth form of Maa and her name stems from being the daughter of sage Katyayan. Her complexion is as bright as gold. She has four arms. The top right hand is positioned in a gesture of providing courage and another hand is positioned in a gesture of rendering a boon. She is mounted on a lion. As a war Goddess She is associated with the fierce form of Shakti which also includes Bhadrakali and Chandi. Sri Katyayani Devi is the destroyer of diseases, sorrow and fear and worshipping Her helps one to free oneself from the sins one may have committed over the cycles of births and rebirths.

Skandamata Devi is the fifth form of Maa.....

 The fifth form of the Divine 'Mother is known as Skandamata. She is the mother of Ganesha and Skanda (more known as Muruga or Kartikeya), She is referred to as ‘Skandamata’. She is fair, has four arms, holds her son Skanda in her lap and is mounted on a lion.Skandamata is the Mother who gives the power to vanquish all negativity. By holding Muruga, She is not only holding Him, She is holding all of us. 

If we sincerely – like a child - ask Her to let us sit in Her lap, She will also hold us and do everything for us.

Something about the fourth form of Maa called Kushmanda Devi.....

Kushmanda Devi is the fourth form of the Divine Mother and appeared smilingly at the moment of the creation of the Universe. The Goddess has eight arms and rides on a lion. Amongst the sacrificial vegetables that are offered in Her worship, pumpkin (Kushmandam’ in Sanskrit) is the one with which Devi Kushmanda is most pleased. Worship of this form of the Devi exterminates sorrow and diseases and augments life, fame and strength. She is appeased with the slightest of devotion and if any one whole-heartedly worships Her, he will certainly gain her favour so to find true happiness and true joy.

Sri Swami Vishwananda talks about the third form of the Divine Mother called Chandraghanta Devi....

 Chandraghanta Devi is the third form of the Divine Mother. Her Name is connected to a bell shaped crescent moon on her forehead. The colour of her body is golden. She has ten arms which brandish different weapons and is mounted on a lion. Chandraghanta Devi establishes justice. It is believed that a devotee who manages to earn Her blessings can set himself free from his sins and hazards that he has committed or may face in his life. The devotee gains the power to sense the supernatural, to see it and even smell the eternal fragrance. He is also able to distinguish the otherwise inaudible celestial sounds.

Sri Swami Vishwananda talks about the second form of the Divine Mother called Brahmacharini Devi.....

 The second form of the Divine Mother is Brahmacharini Devi. She is showing us how important our Sadhana is, as an expression of devotion to the Divine. She is holding a japa mala (chanting and remembrance of God’s name) in Her right hand and the kamandalu water pot (life-giving Shakti) in Her left hand.  Brahmacharini is the Goddess of discipline. She gives the devotees success and willpower to come out victorious in times of utter distress. She helps to make our faith strong and helps those who are sincerely looking for Her. 

Sri Swami Vishwananda talks about the first form of Divine Mother of Navaratri called Shailaputri Devi....

 Shailaputri Devi is the first form of the Divine Mother. ‘Shaila’ is another name for the Himalayas, ‘Putri’ means ‘the daughter’. Shailaputri was born as the daughter of King Himavan, the Lord of the Mountains. She holds a trident in her right hand and a lotus in her left hand. She is mounted on an ox. She is the most powerful and glorified of all the nine forms of Durga. In the form of Shailaputri She is destroying the pride of the Gods, which is none other than our own pride.