In the Lotus Sutra, the Buddha states that he actually teaches only bodhisattvas. This means that even the voice-hearers who follow the Four Noble Truths or those who contemplate Dependent Origination are not authentic followers of the Buddha until they have the compassionate heart of a bodhisattva. Thus, it is not enough to simply follow the Eightfold Path. One must also follow it with the spirit of compassionate concern for others. The bodhisattvas do not practice only for their own benefit, they practice for the sake of all beings. This is because they are deeply aware of the interdependent nature of all things. That is, they realize that no one is disconnected from the whole. Therefore, the notion of a self-liberation apart from others is just another symptom of the delusion of a separate self.