Often the question comes up as to whether we will know one another in heaven. I cannot give a definite answer to that, because the Bible does not specifically address this, although it does say we will know as we are known (see 1 Corinthians 13:12).
For the time being, I don't have a complete knowledge of what is going on. I have an incomplete knowledge of God. But one day in a new body, I will see Him face-to-face, and all of my questions will be answered.
The apostle Paul had a remarkable experience in which he died and then was revived (see Acts 14:19–20). This wasn't a near-death experience; Paul literally died. But he didn't write a book about it. He basically said, "I was caught up in the third heaven and heard things that I can't even describe to you, but it was paradise" (see 2 Corinthians 12:2). That is all he would say.
It does appear, however, that we will recognize one another in heaven. After all, when Moses and Elijah met with Jesus on the Mount of Transfiguration, the disciples recognized them. So you might ask, "How will I know you if I'm looking for you?" Well, look for the guy with the full head of brand-new hair. That will be me.
Yes, there is that day when we will be with the Lord. We don't know everything about heaven. But we know it will exceed our wildest dreams. We will see the Lord and we will see one another. And all of the mysteries will be solved.