Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
Descending from a high place indicates a change of situation for the worse, dismissal from a position, and poverty after wealth. If one descends to a good place, he is moving to comfort after fatigue.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Descending indicates a decline in status, worry, and grief. Descending from the sky indicates God's anger or a severe illness.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
Descending is interpreted as worry and grief. Descending to an unknown place indicates death. Descending from a mountain after climbing it indicates completing the matter successfully.