The simplest answer to this question is to make money. People invest to grow wealth and become financially stable. Investment will also generate passive income, so you do not have to do active work to make money and pay your bills. You will receive a return on investment. The purpose of investment is also to live a comfortable life, or let's say enjoy a luxurious life.
Have you met your purpose? How long did it take?
Have you met your purpose? How long did it take?