Many people who do not understand the views of Madhayamaka tend to find many contradictions when reading the scriptures of Prajanaparamita, such as the Diamond Sutra and the Heart Sutra, that expound  the idea of emptiness, i.e the five aggregates, the four elements and in fact all phenomena are without distinct self-nature. This is plainly because they do not know the need to separate the two truths in their analysis. Here are some of the usual questions: " Is Buddhahood a fallacy ? If the Buddha is empty of self-nature, what is the point of practicing the Dharma and how is one supposed to attain Buddhahood ? Are causality and rebirth for real? If karma, samsara, Buddhahood, the practice itself and the act of freeing sentient beings from suffering are all real, how can they be empty of self-nature at the same time? To answer these questions, the two truths must be applied separately. 

~Depicted from FROM BELIEVERS TO BODHISATTVAS