Iqbal, the most eminent poet of the 20th century seems to be a naturalist in his earlier works especially the first part of his Urdu collection "Bang e Dara". However, his stay at Europe brings a big change in his political and nationalistic thoughts. His concepts about nature also tend to change. Nature is no more a romantic phenomenon for him rather he draws broader meanings of life from it. Conquering of nature now becomes an essential part of his concepts of "Khudi" and" Mard e Momin". He now believes in humanism instead of naturalism. This article identifies changes in the concept of nature  found in Iqbal's poetry.