Sometimes I dream that I am performing Ghusl (bathing for ceremonial purity ), offering Salah (Prayer) and reciting the Qur'an. Am I rewarded for this?
Dreaming of offering Salah, reciting the Qur'an, performing Ghusl and such deeds is not rewarded, just like dreaming of committing a crime does not incur a sin. A person is not held accountable for their actions while they are asleep, according to the statement of the Prophet (peace be upon him),
There are three (persons) whose actions are not recorded
including a sleeping person. (Part No. 24; Page No. 382) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.