Hadith(Topic) explanation.

عن عمر بن الخطاب رضي الله عنه قال :سمعت رسول الله صلى الله عليه وسلم يقول:(إنما الأعمال بالنيات وإنما لكل امرئ ما نوى ، فمن كانت هجرته إلى الله ورسوله فهجرته إلى الله ورسوله ومن كانت هجرته لدنيا يصيبها أو امرأة ينكحها فهجرته إلى ما هاجر إليه

Narrated `Umar bin Al−Khattab: I heard Allah’s Apostle saying,
“Deeds (their correctness and rewards) depend upon intentions,
and every person gets but what he has intended. So whoever
emigrated for worldly benefits, or for a woman to marry, his
emigration is for what he emigrated for.”

This Topic remind us with devotion while we worship Allah or performing any deed that we should take care of this sensitive element which is devotion .Allah will not accept any duty without that.