I constantly look around me, just observing what people do and try to understand the reason for it, a reason for our existance. For example love. Why do people love? More importantly why do people love when they know they'll get hurt? 
Why do people bully? A reason is because they have been before; so then why do it to other knowing it causes stress and pain. 
Why is there war? If we all just learned to share, there would be no need for war and we would all be equal and working together at full potential.