That which is Brahman is also Kali, the Mother, the Primal Energy. When inactive, It is called Brahman. Again, when creating, preserving, and destroying It is called Shakti.
Still water in an illustration of Brahman. The same water moving in waves, may be compared to Shakti or Kali.
What is the meaning of Kali? She who communes with Maha-Kala, the absolute, is Kali. She is formless and, again She has forms.
If you believe in the formless aspect, then meditate on Kali as that. If you meditate on any aspect of Hers with firm conviction, She will let you know Her true nature.
The trees of the wood are my next of kins,
And the rocks alive with what beats in me;
The clay is my flesh, and the fox my skin,
I am fierce with gadfly and sweet with the bee,
The flower is naught but the bloom of my love,
And the waters run down in the tune i dream.
The sun is my flower hung up above,
I flash with the lightning, with falcons scream,
I cannot die though forever death
Weaves back and forth in the warp of Me.
I was never born yet my births of breath
Are as many as waves on the sleepless Sea.
My breath doth make the flowers fragrant,
My eyebeams cause the Suns bright light,
The sunset mirrors my cheeks rose blushes
My aching love holds stars so tight
Sweet streams and rivers my veins and arteries.
My beauteous hair the fresh green trees.
What giant strength! My bones are mountains,
O, joy! the fairy world my bride,
Nay, talk no difference, wonder of wonders,
Myself the bridegroom, I the bride.
