Heart Sutra is the most common and highly revered book among Buddhists. According to history, the Sutra was translated by Kum raj va (334-416) and Hsuan Tsang (602-664). This work has also been translated by Ching, Dharmachandra, Pradzha, Dharmaraksha and Wei Jing, but a translation of Zhang Xuan became a classic translation. It was commented by Buddhist figures such as Chih I, who founded a school of Tien Tai and Kukay, distributor Shingon school in Japan, and many other thinkers. In the school of Zen sutra was studied more thoroughly than in other institutions, the monks read it daily. This tradition remained up to this day. Note that in the translation of Hsuan Tsang only preaching bodhisattva to the Reverend Shariputra was placed, but sutra had no introduction and ending. That is not typical for the sutras. Some researchers believe that the Heart Sutra was created in China and translated into Sanskrit later. However, most scientists are inclined to believe that this version in Sanskrit is the original, despite the fact that the Chinese translation of the sutra had much more influence on the schools of Buddhism.

Heart Sutra represents the wisdom of Buddha. It reveals a thorough study of changes that are based on the doctrine of emptiness. Heart Sutra is the main model of the primary sources of the Buddhist period of creation of Buddhist literature Perfect Wisdom.

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Why is this sutra appreciated? It argues that the body and mind have no value because emptiness cannot have a value at all. The body and mind are not important to be taken care of. A person becomes free from the power of conditions and gains freedom of action and unlimited fear of death. Supporters of Buddha believed that nothing appears and disappears in the world. These words proved that there is no death, but it is only a transition from one state to another. Therefore, people should become wiser, not succumbing to pleasure. So we have to live our lives for the benefit of other people. It is no accident that this sutra was preached by bodhisattva perceiving the sounds of the world, because it is a symbol of compassion and mercy. On the one hand, it helps people to get rid of dependence on the conditions and the fear of death, but on the other hand, it points the way, which can be useful to people.

The philosophy of Buddha can be described in two words - compassion and wisdom. These are two different concepts, but they have a similar meaning. In other words, compassion creates wisdom, and wisdom is the basis for compassion. How can emptiness awaken compassion? Emptiness is a reality and wisdom is knowledge of reality. If you do not see this, you will make mistakes and suffer.

In conclusion, Heart Sutra describes the doctrine of the Bodhisattva Avalokiteshvara. The peculiarity of this sutra is that the doctrine does not come from Buddha as it only confirms the correctness of the findings of Avalokiteshvara. The content of  Heart Sutra can be divided into explicit and implicit type. Significant importance in the concept of human is empty, according to the works of Nagarjuna. The hidden meaning of the concept of the way to enlightenment indirectly shows the emptiness by law. Heart Sutra is an exposition of the Buddhist ideas of perfect wisdom, and it refers to the shortest Buddhist scriptures.