Patanjali, the great yogic sage, taught that someone who speaks the truth has the power of materializing their words; as such, the mantrika shakti of such a person influences the whole universe.
Others describe mantrika shakti as the power behind their words, or the power of their intentions. As such, they believe that using their words to state their intentions helps to manifest what they desire.
There are many mantras and devotional songs that explicitly worship the divine feminine, or shakti, energy. These include the Kundalini-Shakti-Bhakti mantra, which calls upon the Divine Mother.