Knowledge?

why is it that life at the other end always looks greener? Why can't we be happy and content with what we have? what constitutes happiness..... At times you need one reason to get ecastic and at times a slight digression leads you to depression.... i wonder why can't we always live in a state of ecastasy? These are very fundamental questions which always keeps me confused about what am I doing with my life, where am I going... ? I wish I could just take my thinking hat off my head and stop pondering...People say happiness is with in you ... sorry mate, but I can't find it! At times it drives me crazy ....and at times I feel how stupid it is to think of these arbit and time pass questions... I think I am getting a convert in terms of the need to have a spiritual knowledge...the need to touch base with myself..to know who I am .. When I was a kid, I remember having dreams similar to this as to who I am, what will happen after my death, what is my purpose etc etc...and these were probably the result of watching too many religious soaps but the fact is there is definitely something more to education than what we learn in arts, science, history etc.... Why did we never make a good headway in terms of these basic questions than finding how to keep ourself alive longer without making those extra years any more happier....I guess I just need to take a beer break and cut this post off :)