The Shakti at the base of the Spine is the Power of the Divine Mother that is completely involved in matter. In man there is the possibility of awakening it by exercising conscious will. The energy that we experience all around is also the Power of the Divine Mother in her cosmic form as Maya or Prakriti, universal Nature.
We don’t have to invoke either but the Shakti in Her Supreme Aspect which is above creation itself, as the Shakti of the Creator or Ishwara, the Divine Mother Herself and not her cosmic powers or Kundalini Shakti.
Affectionately,
Alok Da