The access to Jesus is the Holy Spirit. As soon as Jesus was baptized, He went up out of the water. At that moment heaven was opened, and He saw the Spirit of God descending like a dove and alighting on Him (Matthew 3:17).
And a voice from heaven said, “This is my Son, whom I love; with Him I am well pleased.”
THE TRINITY: GOD came in the form of the Holy Spirit to interact with Jesus. Even when Jesus fasted it was the Holy Spirit that guided Him. If GOD related with His Son through the Spirit how much more we His siblings. When Jesus was to ascend into heaven He promised us the comforter in the person of the Holy Spirit.
The reason why it is through the Spirit is because without the Spirit of God there is no access. The reason He went up was because His spirit could come down in the heart of men making them behave in His exact manner if we adhere to Him most of our request are heard and granted through the Spirit.
Now to have a purposeful driven life is to have a relationship with Him because your purpose life cannot be driven by you but Him. In the sense that once you enter Him you have Him as a spirit, relate with Him as a spirit do with Him.
The book of John 14:16. Explains the relationship we have with Jesus through the Spirit. Implying that the Spirit is an advocate of Him in us. So our purpose is driven by the Spirit to our destination Jesus. If the Holy Spirit is not in you, you can’t relate with Jesus.