Dreaming of walking during the pilgrimage season signifies the removal of your thoughts and worries. It symbolizes mental peace, indicating liberation from life's stress and anxieties. If you dream of praying or giving advice in the Mina Valley, it suggests the possibility of positive changes in your life. You can move forward with a new perspective and hope.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Pilgrimage season" (page 329).
Performing a pilgrimage during its season in a dream means dispelling one's worries, distress, apprehensions or trouble. Praying or delivering a sermon at the valley of Mina during the pilgrimage season in a dream, and if neither the person seeing the dream or anyone in his family or clan qualify for that, it means that someone with the same name among his acquaintances will do so. If this is not feasible, it means that he may face adversities, though become known for his good nature and deeds. If a learned person sees himself delivering a sermon at Mina, and if the people listen to him attentively in the dream, it means that he will rise in station and lead his people, or he could be appointed as a project manager or become an administrator. If one does not complete his sermon or prayers in the dream, it means that he will attain such a position, though he will be quickly removed from it. (Also see Pilgrimage)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.