" The moment you have realized bodhicitta, you have become a Mahayana practitioner and are on the path to complete enlightenment but the moment your bodhicitta degenerates, you fall outside the fold of the bodhisattvas. Without bodhicitta, no matter how advanced you are in other practices—even if you have a direct realization of emptiness or have attained nirvana—nothing you do becomes the conduct of a bodhisattva or the cause of enlightenment. "

― Dalai Lama XIV , Illuminating the Path to Enlightenment