Paul also pointed out that we are made up of a spirit, a soul, and a body (e.g. 1 Thessalonians 5:23. Also see Hebrews 4:12). Our spirit is in constant contact with God, and our body is in constant contact with the physical world, and everything else (our mind, will, emotions, personality, etc.) is our soul, according to Bible teachers.
God is a spirit (John 4:24), and we're in constant contact with Him through our born-again spirit which is in Christ. We receive spiritual blessings from God through our spirit, and it's our responsibility to manifest these spiritual blessings outwardly.
For example, when we receive our born-again spirit at salvation, we also receive the fruit of the Spirit which is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control (Galatians 5:22-23). These are spiritual blessings (in our spirit), and we must use our mind and will so that these spiritual blessings are manifested outwardly into the physical world.
In other words, we don't automatically love our neighbor, for example, but instead we had to be commanded to love our neighbor (Matthew 22:39, Romans 13:9-10). So even though the fruit of the Spirit is in our spirit, it's our responsibility to do something so that love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control are outwardly visible. Those things don't do anyone any good if they remain inside of us!
We also receive gifts of the Spirit through our spirit, and it's our responsibility to do something so that our spiritual gifts are outwardly visible. If you have the spiritual gift of evangelism (e.g. Ephesians 4:11), for example, then it's in your spirit and available at all times, but you must speak to people in order for that gift to become outwardly visible.