[Where Do We Come From? What Are We? Where Are We Going?, one of Post-Impressionist Paul Gauguin's most famous paintings](By Museum of Fine Arts Boston, Public Domain, Link)
Somehow I got a quote, what is the meaning of life. It turns out that the meaning of life is not the absorption of nutrients. As a matter of fact, the same amount of substance is absorbed into the cell as much as the cell and excretes. You can notice it by adult life, when you are no longer growing, and the weight of a person, as a rule throughout life, keeps constant and only decreases in old age. The atoms in the cell are in constant motion, something is collected, and something is sorted out. In the simplest cell at the same time there are about two thousand agreed complex chemical reactions that perform the synthesis or modification of organic substances. And in more complex cells, the number of such reactions can reach ten thousand or more. You just think of 10,000 operations in such a small cell and no glitches or changes, everything works like a clock.
[Structure of an animal cell](By Royroydeb - Own work, CC BY-SA 4.0, Link)
The cell absorbs and assimilates space - that is the main meaning of life. Cells are constantly growing and multiplying, and again growing and multiplying again, the number of them increases - 2, 4, 8, 16 and so on as long as there is a possibility and sufficient resources of the environment ...
But does not man act the same way. Does not a person grab territory, organize wars for resources, destroy another person in order to get something in sufficient quantity. Everything repeats exactly. Perhaps the reason for such human actions is the sense of the living (cell): the seizure of territory and growth. All human actions are predetermined and formed on the basis of the goals of the cell, and we are in fact the instrument for achieving these goals. Whatever we do, we do not for ourselves (FAVORITE!), But for the development and growth of the cell, which from one unit has reached the amount sufficient to form the human body that ensures the existence of the cell capturing new resources and areas of the environment. Therefore, we are so thirsty for discoveries of new territories both on earth and in space. And what seems to us not known and not known, in fact, these are just new possibilities for erecting an extension in the form of another room for the house in which the cells live.
[The metric expansion of space. The inflationary epoch is the expansion of the metric tensor at left.](By NASA/WMAP Science Team - Original version: NASA; modified by Ryan Kaldari, Public Domain, Link)
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It's too hard to understand. The meaning of life is really a very broad topic!
Why is it difficult, very simple, the meaning of life in life itself is that life would never end - it must be supported. So far we know one way to multiply.
Perhaps you are talking about everyday difficulties, so this does not affect life in any way, it is related only to the survival of the individual.