Seeing that blessed mosque, one of whose names is "al-Masjid al-Aqsa," signifies goodness, blessing, bounty, and salvation. Again, if a person sees himself in al-Masjid al-Aqsa, it is a sign of being purified of sins, of goodness and blessing, and of attaining worship and obedience to Allah Almighty.
Ja'far al-Sadiq said: Seeing al-Masjid al-Aqsa in a dream is interpreted in four ways: a) blessing, b) forgiveness, c) contentment, d) ease... If a man sees himself recite the Qur'an in al-Masjid al-Aqsa, it is happiness upon happiness...
Seeing himself perform the prayer there signifies being gathered with the prophets. Again, seeing that blessed house signifies piety and trustworthiness, going on the pilgrimage, and being secure and safe.