In a dream it indicates safety from fear, because of His saying, the Exalted:
وَلَقَدْ أَوْحَيْنَآ إِلَىٰ مُوسَىٰٓ أَنْ أَسْرِ بِعِبَادِى فَٱضْرِبْ لَهُمْ طَرِيقًا فِى ٱلْبَحْرِ يَبَسًا لَّا تَخَـٰفُ دَرَكًا وَلَا تَخْشَىٰ
“And We had inspired to Moses, "Travel by night with My servants and strike for them a dry path through the sea; you will not fear being overtaken [by Pharaoh] nor be afraid [of drowning]."”
Quran 20:77 · Saheeh International
(Whoever sees) that he has an illness from dryness has been extravagant with his money in what does not please God Most High, has taken debts from people, squandered them and not repaid them, so punishment has befallen him.