This is the question! The body dies, it becomes the substance of the earth from which it was brought forth. The soul is different. It is from God; He blows into us and returns Him. We can maintain this soul what comes from God, use the Divine attributes (mercy, forgiveness, generosity, etc.) that are inherently encoded therein for His purposes, or even neglect it and follow the desires of our free will under the control of our Ego.
Today's man is more concerned with his/her body than with his/her soul. He spends huge sums of money on planting hairs in his balding head, for plastic surgery, boosting her breasts by silicone, and so on. He/she spends energy on what is transient and becomes earth. The soul, which is eternal and of God, is neglected. People of the old days were different. They traveled days and weeks for a good word, advice, and for building their souls. Bukhari spent his whole life gathering the words of the Prophet (peace upon him), collecting the moments of his life, and therefore traveled to remote lands riding donkey. Today, let's just say when death comes that "your soul will gain eternal rest", but that's a slogan, we don't perceive its meaning. The quality of soul is one of the reasons why angels and all creatures are condemned to bow before man. So, it's not about all souls

They ask thee concerning the Spirit (of inspiration). Say: "The Spirit (cometh) by command of my Lord: of knowledge it is only a little that is communicated to you, (O men!) " (Quran 17:85)

What is the nature of inspiration? Who brings it? Can it ask its Bringer questions? Can we ask anything which we wish? These are the sort of questions always asked when inspiration is called in question. The answer is given here, Inspiration is one of those high experiences which cannot be explained in the terms of our everyday human experience. It is spiritual. The Spirit (Gabriel) does not come of his own will. He comes by the command of Allah, and reveals what Allah commands him to reveal. Of the sum-total of true divine knowledge what a small part it is that ordinary mortals can understand!

The other is knowledge and the constant seeking for it. Because Allah (SWT) taught man the names of all things, at least the ability to learn, and thus planted in us the possibility of developing our consciousness:

And He taught Adam the nature of all things; then He placed them before the angels, and said: "Tell me the nature of these if ye are right." (Quran 2:31)

In family life it is a predestinated instinct of mothers how they teach their baby to speak. Every mother does the same in all over the world! They tell words like daddy, mummy, dog, cat, toy, doll etc. They never teach verbs. Only after a period of time when the small baby can comprehend the names and the nature of the issues behind the names Mum starts to pour life into these names with verbs. This process is described as a wonderful Parable when Allah taught Adam the names and the nature what is behind them. Allah taught Adam to identify the objects in the world and gave their names! Exactly like our Mother used to do with us!At this time Angels still felt superiority above Adam who was “only” an Earthly creature. But Allah turned to the Angels asking them to identify the objects of the world and they failed.
This Surah also inspires for us that with improving our knowledge and following the Guidance it is possible to transgress our own limits.

And behold, We said to the angels: "Bow down to Adam" and they bowed down. Not so Iblis: he refused and was haughty: He was of those who reject Faith. (Quran 2:34)

This is the moment of division between those who obey and those who not. Appears Iblis who represents the revolt against the will of Allah.

I could have quoted many other ayas, so even the first "Read!" as the call by which Gabriel first proclaimed this word on the command of Allah.
As with the soul, it should be noted that it is a matter what knowledge the Lord commands for our creatures! Destructive, or constructive knowledge, what helps us to fit in the creature? We will soon find out which one it is, because if the knowledge what is settled in the brains doesn't serve the purpose of the Lord, the creatures instead of bowing down, will unite against us! If man becomes the enemy of the world, the world will strike back and destroys man. Or don't you see that?