For what purpose did Hashem create man?
If it’s for the enjoyment in this world, why is it that almost no one is actually enjoying it? There are so many sufferings and sicknesses in this world. If you manage to find one in a thousand who is happy, he doesn’t live forever to enjoy his happiness.
David hamelech says “ימי שנותינו בהם שבעים שנה ואם בגבורות שמונים שנה ורהבם עמל ואון”. This means that our life on average is 70-80 years and even those years are full of pain.
Furthermore, if the purpose is for benefitting from this world, why did Hashem put within us such a great Neshama that is greater than the malachim (angels)? Chazal explain it with a parable. There was a farmer who was lucky enough to be able to capture the heart of the kings daughter, the princess. When it was time for him to marry her, he went shopping for a gift to give her. To his surprise he found that there is nothing he could give her that will excite her since she has everything that he had to offer. The same is true with the Neshama since it was brought down from under Hashem’s throne. None of the world’s pleasures excite her besides for spirituality. The conclusion is that we are here for one purpose only and that is to use this world in order to get ready for the upcoming world.