Interpretation is part of Paul's Biblical instruction to weigh revelation: 

• What is from God?
• What is from our own souls? 
• What is a "fiery dart" from a dark spiritual source? (Ephesians 6:16)
• What does it mean? 

To understand and to apply what God says to us through Dreams and Visions is part of hearing His voice. It's also part of helping people hear God's voice. 

"They said to him [Joseph], "We have had dreams, and there is no one to interpret them." And Joseph said to them, "Do not interpretations belong to God? Please tell them to me." - Genesis 40:8 ESV

Faisal Malick, an evangelist to Muslims, tells this story: 

A pastor told me about a Muslim man who had a dream for several nights in a row. This Muslim man was looking for the answer to his dream, so he went to the Church door, knocked, and told the pastor that he had some questions for him. They sat down, and he shared his dream with the pastor.  

He said, "I have this dream where I see a huge high fence, and I begin to climb the fence. As I climb the fence I get up a little bit, and then I fall to the ground. Then I get up. I climb the fence again, and I fall to the ground. I need to get to the other side, and I don't know how. I know this dream is from God, and I know God is trying to speak to me. Could you help me interpret what this means?" 

The Spirit of God gave the pastor the Interpretation, and he said, "You are trying to get to the other side, which is heaven, and you're trying to do it by your own work. That's why you keep falling to the ground, because you're not good enough to get there on your own works. But you can get to Heaven through the grace of the Lord Jesus Christ." 

He shared the Gospel with him and the Muslim told him to wait a moment. He left and returned with five of his Muslim friends - all of them were born again, baptised, and now attend the Church.