From Amy Carmichael:
I want to give you a word that helped me all yesterday and will help me today. It is the “through” of Psalm 84.6 [“As they go through the bitter valley, they make it a place of springs”] and of Isaiah 43.2 [“When you pass through the waters I will be with you; and through the rivers, they shall not overwhelm you”], taken with Song of Songs 8.5 [“Who is that coming up from the wilderness, leaning upon her beloved?”].
We are never staying in the valley or the rough waters; we are always only passing through them, just as the bride in the Song of Songs is seen coming up from the wilderness leaning upon her Beloved.
So whatever the valley is, or however rough the waters are, we won’t fear. Leaning upon our Beloved we shall come up from the wilderness and, as Psalm 84.6 says, even use the valley as a well, make it a well. We shall find the living waters there and drink of them.