In the same way, to reach one's khudi or rooh one needs to go through multiple stages which Iqbal himself went through, spiritual path which he encourages others to travel. He notes that not all seeds reach the level of fragrance. Many die along the way, incomplete. In the same way, only few people could climb this Mount Everest of spirituality, most get consumed along the way by materialism. The same concept had been used by the Medieval poet and philosopher Farid ud-Din Attar in his Mantaq-ul-Tair (The Conference of the Birds).