Mighty.Sun.Tzu
For the truly surrendered servant of the Lord Jesus, our lives are about Him in us and this becomes who we are as born again children of God who have been transformed into new creations in Christ. When the chase your dreams message is not distorted and made to be about financial prosperity or some other carnal desire, it is about chasing the dreams that Christ in us has placed in our hearts.
My greatest dream for example is about being completely dead to flesh and being continually more deeply immersed in the Holy Spirit, experiencing the beauty of God's tangible presence and love more abundantly with each passing day. My genuine dream includes having my heart be tangibly connected to His in love every second of every day throughout all eternity.
Another dream which actually is a natural extension of the first is to help encourage and equip as many people as possible towards the same dream. I expect the dreams of Stephen, Phillip, Peter, Paul, etc were remarkably similar and that they too were chasing these dreams.
In summary, i believe it's wonderful to chase the dreams that the Lord Jesus has placed in our hearts and we just need to seek Him in our intimate time together and carefully discern which dreams are from Him.