Human relationships are weird, this is primarily due to the fact that people are weird. In our mutual weirdness, we weirdly misunderstand one another. Since we can’t read each others thoughts, we assume things.
Being weird, our assumptions are often weird, causing everyone around us to be weird in our minds, which then leads to weirdness in every relationship. The only way we can interact with others is through our five senses. There is a limit to the closeness we can achieve with others because everything is external.
The distinction of the New Testament relationship with God is that it is so personal it is actually internal. The Believer’s relationship with God is a spiritual relationship, delving deeper than any human relationship could ever hope to.
This deeper relationship is the result of the Holy Spirit’s presence in the Believer. We are in Christ and Christ is in us. Therefore, our relationship with God is not dependent upon external, five-senses limitations.
Before the New Testament indwelling of the Spirit in all believers, OT believers were more dependent upon the five senses to learn things about God, which is part of the reason they had external ordinances, types, shadows, judgments, etc.
Now that Believers have the Spirit indwelling them, however, we are a spiritual people with a spiritual relation with God. When many speak of the external, five-senses experiences with God, I think they are missing things, perhaps making things up, basing their relationship with God upon what they experience with other people not what the Bible says a believer now experiences with the Spirit of God in Him, being partakers of the divine nature.
Our relationship with God is distinct from any other relationship we have with other physical beings. If it is not so, then you need to know God through His Spirit.
“For who knows a person’s thoughts except the spirit of that person, which is in him? So also no one comprehends the thoughts of God except the Spirit of God. Now we have received not the spirit of the world, but the Spirit who is from God, that we might understand the things freely given us by God. And we impart this in words not taught by human wisdom but taught by the Spirit, interpreting spiritual truths to those who are spiritual.”