Renunciation depends on the practice of the four general preliminaries, that is, the conviction of the rarity and preciousness of human birth and impermanence of all phenomena must be generated. For bodhicitta to be aroused, there must be sufficient amount of merit accumulated through mandala offering and obscurations purified and healed by meditation on Vajrasattva. Clearly, one cannot avoid undertaking the practice of general and extraordinary preliminaries no matter how one chooses to go on the path. This is also the reason why I have been insisting all along on the necessity of preliminary practice.

- Quote from The Right View, "Buddhism—the Definition"