Dreaming of climbing into the sky signifies that changes are coming in your life. It may also indicate a decrease in your position or status. At times, you might be feeling pressured or hard on yourself. If you reach great heights in the sky, it reflects your ambitions and the achievement of your goals. However, be cautious, as it can also symbolize a lack of self-confidence.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Climb" (page 85) â resolved via the equivalent "Ascending in the skies" entry.
To see oneself ascending in the skies in a dream means falling in rank, or it could mean oppressing oneself. Ifone sees himself ascending in the skies until he reaches the stars, merges with them and ifhe becomes a star in the dream, it means that he will receive titles and powers. If one sees himself ascending a mountain it means depression, stress and travels. However, rising in a dream means elevation of status, and descending means a backslide. If one sees himself walking up a steep road in a dream, it means rising in status, but involving toiling and hardships. If one sees himself climbing a mountain, then the mountain in a dream is interpreted as one's goal. Thus, one's dream may mean attaining one's goal as far as he reaches in his climb. In dream interpretation, any ascent of a mountain, a trail, a hill, an elevation or even climbing a roof means attaining one's goal or satisfying one's needs. To see oneself climbing flat on his back in a dream then means uncalled for, or unnecessary hardship. (Also see Air; Ascent; Climbing a mountain; Flying)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.