The Elements and elemental magic, different spells can focus on different elements. Be sure that, if you use the elements in your spells, use the best quality. Try to use pure mineral water instead of tap.
cut etheric cords - we were discussing this at a workshop a week ago. An important aspect of cord cutting is releasing it with love, for releasing it with any negative emotion will only cause more disharmony.
Pentagram symbol - representing the five elements of creation and it's attributes. Note : If you superimpose the vitruvian man figure over it, you see how it also represents the sacred geometry of body of man.