Very good question I would say, Human creation of God is the only creation which has some most relevance in entire universe. Well defined in Bhagavad Gita. If you compare human with animal & plants which are another creature of God has life, only human has intellectual capability to perform & find the meaning of life. Plant has life but absence of mind & intellect (feeling, desire etc.). Animal does have mind (that is why animal has feeling & they are attached to human in some gen) but absence of intellect. Human has both Mind & intellect to do the wonder in human life. All great people in history from ancient age to until today era genius people use this & done a great job in their life. What should be your life? that is about my below video and last part is important on this & I try to explain for common people(easy understanding) rather than for intellectual people.
Take the example of today great people – Ratan tata, HCL Shiv Nadar, Infosys – Sudha Murthy, APJ kalam try to read there biography and you find what they did or they doing. I mean how they behave, what type of character they are in real life. See my two more video around biography book reviews on these genius people & refer the book directly as well. You will find all those charecters are in there real life what I explain or define in spiritual video. (https://youtu.be/Mw-4xY3-9Hg )