Buddha is a natural force of benevolence. Bringing in the energy of Buddha allows you to walk your spiritual path in a focused way through karmic values; meaning you would apply good and bad but understand it was situational. Still understanding as well you have free will and a choice. It's in those choices and outcomes how you act that makes your spiritual path what it is. Choosing a Buddha and bringing in the energy of that particular practice will allow you to tap into who you are more readily.