Mirza Abdolqadr Dehlavī and Muhammad Iqbal Lahori are two famous poets of Tajik Persian literature; the former  is representative of historical peak of poetry in  India and the latter is the  image of  the existence of poetry in Persian after the changes in historic borders in that ancient land. It is possible to find some commonalities between the two great poets among which is "common grief ". Considering Mirza Bidel's poems, for example, the last section of Telesm-e- Heirat( wonder incantation) Masnavi, we find out that sometimes the  poet's ideas are spelled in such a way that similar content comes involuntarily to the reader's mind familiar with Iqbal Lahori, and astonishing similarities can be found in the two great poets' thought. In this article, as an introductory step in learning semantic commonalities between Bidel and Iqbal's poems, only the similarities of self-knowledge grief are discussed. The main difference in the wisdom of Iqbal with Mirza Bidel in the above mentioned problem is that one talks about of becoming perfect man, and the other talks training free and pious crowd. However, both of them consider the means to achieve the goals in finding particular ways and methods.