It is evident you are only able to read in between the lines of Scripture rather than grasping the lines themselves.
Are you unable to actually say where in Corinthians and Romans The Holy Spirit is Shown "speaking" to an individual about distinctly individual matters, or about The Father beyond what is already disclosed in Scripture?
		
		
	 
1 Corinthians 2:12 But we received, not the spirit of the world, but the Spirit which is from God, that we might know the things that were freely given to us by God.
True believers are given the Spirit of God. One of the functions of the Holy Spirit is to illuminate the believer "that he might know the things that are freely given to him by God." This is not happen to unbelievers. The Holy Spirit reveals to believers revelation that he does not reveal to unbelievers. That is communication.
13 Which things also we speak, not in words which man's wisdom teaches, but which the Holy Spirit teaches, comparing spiritual things with spiritual things.
--In addition the believer is able to speak those things which the Spirit teaches, contrasted to man's wisdom. He is able to compare spiritual things to spiritual things, something that the unsaved man cannot do. Why? The Holy Spirit dwells within him and works within him, and communicates with him, and bears witness with him.
In contrast:
14 Now the natural man doesn't receive the things of God's Spirit, for they are foolishness to him, and he can't know them, because they are spiritually discerned.
The natural man (unsaved man) does not and cannot receive the things of God's Spirit because they are foolishness to him. He is spiritually discerned or judged. He does not have the Holy Spirit. He is separated from God, and is unable to have any communication with him whatsoever. To God he is dead spiritually. God cannot communicate with a dead man.