Joseph having experience with dreams understands that the interpretation of dreams belongs to God. I believe that when he had his two dreams, that God had already revealed to him what they meant, and I also believe that God gave him the ability to interpret others dreams as well. Likewise with us and the gifts of the Holy Spirit, He gives us the ability to operate in the gifts as He sees fit. Sometimes like Joseph, this gift is used over and over through an individual, but sometimes, the gifts are used once and never again. It’s not up to us to use the spiritual gifts as we please, but to be available as a willing vessel to allow Him to use them through us as He wills. This may go against some teachings we have heard regarding the gifts of the spirit, but scripture clearly supports it.