In addition to the qualities of Kyanite the kyanite found with biotite brings feelings of complete and utter peace. It evokes the "peace which passes all understanding" that is mentioned in the Christian faith, but is an important part of any faith.
This stone can assist you in opening up and working with past lives, by releasing the ancient wounds that block growth. This can be done without dwelling on the "what" or "why" of it, simply clearing things so that your most authentic self can begin to create from a point of purity.
Kyanite in biotite can also help you to understand that death is just another phase in our soul's journey.