The Mother of Nirvana
There are different Sambhogakaya and Nirmanakaya forms. Mother Tara has emerged from all these various forms. Among them, Mother Tara arising as Nirmanakaya Tara is a crucial deity. She usually deals with us, confused and distracted beings. She does that by bringing us back to our original state. That is why they call her the mother of samsara and nirvana.
No boundaries can confine Tara's origination. It is because her nature is, in the end, nondual. The limitations of social systems or otherwise do not bother her. In relative truth, people's minds create these dualistic conceptions. These conceptions do not apply to Tara. She comes as they need her in various forms.
Mother Tara's Human-Like Form
She reaches out to every living being as her purpose is to help them. Thus she aids every type of being. It is inclusive of animals and the beings of other realms. Tara comes in a human form like ours for us humans. She comes with two arms, two legs, two eyes and so her features are familiar.
Thangkas depict her traditional costume and adornment. They depict her in the clothing of the ruling class of ancient India. Tara came in this form for human beings. She emanated this way for us to connect with her and bring us towards Enlightenment. She is compassionate and it is always ready. So, it requires our mind and heart to be ready too. This is the "Ring of Devotion".
Different Emanations of Mother Tara
Her sambhogakaya emanations have many forms. Like, Vajravarahi, Vajrayogini, the five mother Dhyani Buddha, and the five wisdom Dakini. There are twenty-one originations of Tara. They all fall under her nirmanakaya emanations. Red Tara in fact activates our realization. It overpowers our ego-clinging and neurotic stages.
Tara's forms that are popular in India are Dakini Mandarva and Niguma. In Tibet, it is Dakini Yeshe Tsogyal. The continual practice of Green Tara, White Tara, Red Tara, Yeshe Tsogyal does us good. It helps us remove fears and hindrances. We can also benefit all the sentient beings by gaining that ability.
Tara and the Wisdom Dakini are not separable. It is because they are the embodiment of enlightened energy. Dakas and Dakinis are Khandro and Khandroma in Tibetan. Dakini translates to "Sky-goer" or "Sky-walker" in literal terms. In this translation, the Sky means wisdom. The "Goer" refers to love, compassion, and well-being.
The Dakini's strength lies in these beneficial activities. Hence, Dakini is the activity of love and compassion. She is full of strength and moves with ease in the wisdom space. The Dakinis come in different forms. There is the wisdom Dakini, action Dakini, Dakini of the Earth, and so on. Artists portray Dakini to be young, beautiful, and often times dancing.
But some Dakinis have a terrifying appearance. For example, Singhamukha (lion-headed Dakini), or Troma Nagmo. They appear to be wrathful and unsettling. But there are Dakinis like Wisdom Dakini Mandarva and Yeshe Tsogyal. Both are Guru Rinpoche's disciples and great teachers.