What is the content (Lenin's definition of matter) of Marxist material view and its significance?

Lenin's comprehensive and scientific definition of the concept of matter is: "Matter is a philosophical category that marks objective reality, which is perceived by people through feelings, and it exists independently of our feelings, and is copied, photographed and reflected by our feelings."

Lenin grasped matter from the relationship between matter and consciousness. Material category is the highest philosophical summary of the diversity and unity of the material world. The only characteristic of matter is objective reality, which exists outside and is reflected by human consciousness.

Materialism of Marxist philosophy:

Based on the development of practice and science, Marxist philosophy gives a scientific answer to the nature of the world on the basis of a comprehensive summary of the history of philosophy and science. Marxist philosophy holds that the essence of the world is matter, and matter is an objective reality that does not depend on consciousness and can be reflected by consciousness. The only characteristic of matter is objective reality.

Marxist philosophy's viewpoint that the world is unified with matter and matter is objective reality correctly reveals the * * * same essence of various material forms including nature, society and people. All kinds of things and phenomena in the world, regardless of their specific characteristics, are a concrete form of matter, and their * * * identical essence is objective reality.

The world is material, that is to say, nature, human society and people themselves are all material and are concrete forms of objective reality.

First, nature is objective

First, nature existed before human beings came into being. Whether it is the micro-world, macro-world, cosmic world or living biological world of inorganic nature, it is produced before human and human consciousness and exists objectively.