She was there when Life started. She will be there when it ends.
She is the light when they mentioned that, ' In the beginning, there was Light!' The Shakta tribe of India mention that Shakti made creation happen. If Shakti or Kali did not manifest, Life would not manifest and just the nothingness of Shiva will have existed.
Do not make the mistake of thinking that you know her. She has developed various images in the minds of several generations before you. Her persona has been coloured by devotees and foes alike. She has been envisioned as the Princess of Darkness, the harbinger of War and Death, when the maha yudhas happened. In times of peace, She has been prayed to, as the Mother Goddess, the Queen of fertility. When Yugas changed, She has been accused of being an Enchantress, which then gradually morphed into a Being of the cemeteries and as a Vampire. For the devotee, She has been the Light in their Darkness and for the non-believer, She has been the overwhelming Blackness in the Morning of the World.
Don’t get us wrong. She is everything we just said, and more.
She is Kali. The Keeper of Time. Yours and of this world.
Today you bow down to Her. Tomorrow your skull gets added to her garland. She is Joy, She is Happiness, She is Sunshine, She is Moonlight, She is Life and She is Death…
Every Life form goes through her Wheel of Time. Either willingly or unwillingly. You are but a speck of Life. Either ride Her wave with Her, or be crushed under it.