Why Such A Longing?

Many a time feel I - Am I right? Am I going on the right route at all? Is it correct what I am doing ever? Feel I great sorrow within undecipherable! Life is going on the world as a journey; Men are coming and going in places on the way; Our destination we only know to go only Our place comes in the long journey of life! The thing we doing should give us satisfaction; I am elated in doing creative work often And yet, the satisfaction I am long for ever I feel I am not getting at all after achievements! Why such a longing is continuing even after I have successfully done whatever I can long?