Communion with God is intimacy with your creator.
The wonderful privilege of everyone who has been born again is the possibility of ongoing communion with the Creator of the universe.
As creatures we were made to be vessels carrying a treasure (2 Cor. 4:7). That treasure is the Holy Spirit. Intimacy with God is being what we were meant to be, filled with the Holy Spirit.
There is no more intimate picture than a vessel filled with a liquid. The vessel itself knows nothing but containment of something greater than itself, something which it feels touching every inside surface. Every so often the Owner comes and tips out the precious substance for someone else’s benefit and then tops it up again to overflowing. Overflowing is the better state for a vessel. Then it is not just containment and the inside surfaces that know the joy of intimacy but every part of the vessel, even those parts that are outward facing, feel the joy.
Jesus said that the first and greatest commandment was to love God with all our heart, soul, mind and strength. You cannot love God in this way if you don’t have intimacy with Him. You cannot love God in this way unless you are filled with the Holy Spirit. You must be born again, yes, but you must also yield and let Him fill you on an ongoing basis.
Dedicate some time every day to intimacy with God your creator. Hear what He is saying to you. Do what He says. Repeat daily.