Human beings were created like all creature by The Creator, Allah, The Most Merciful to shower on them His Mercy. The nature of human beings contains body and soul نفس and spirit روح.
Human beings have the gift of intellect which makes them better than most of other creatures. Allah says in Quran: Verily, We Have honoured the children of Adam and carried them on land and sea and provided them with nice things and preferred then on many of our creatures) 17: 70.
The essence of human beings is greater than the understanding of many people who look to outside of man without understanding of the inner of human beings. That is why we find in authentic Hadeeths lot of emphasis on understanding ourselves. Even in Quran we read: O those who believe, focus on yourselves. (Sura 5, verse 7). The Prophetic Hadeeth says: The person who knows himself has known indeed his Lord.
The intellectual abilities of human beings are much greater than what is used by majority of people.
Consequence of man in his future both the short term future in this life and long term future in the hereafter depends on his faith and deeds. Those who believe in the main facts of life e.g. Tawheed, prophet hood, Imamate etc and act upon these facts, will gain continuous happiness and vice versa.