Wilford Woodruff taught,

“We may have dreams about things of great importance, and dreams of no importance at all…There are a great many things taught us in dreams that are true, and if a man has the spirit of God he can tell the difference between what is from the Lord and what is not. And I want to say to my brethren and sisters, that whenever you have a dream that you feel is from the Lord, pay attention to it…We may never see anything take place exactly as we see it in a dream or a vision, yet it is intended to teach us a principle.”

Wilford Woodruff, JD 22:333-334