-- that Jesus was crucified, buried, and resurrected, but unless you personally know Jesus, not just knowing about Him, then for you this day will be meaningless.
The following is from GotQuestions:
"Knowing Jesus vs. knowing about Jesus—what is the difference?"
We easily substitute religion for a real relationship with Jesus. We often think that, if we are doing “Christian things,” that's all that counts. We can appreciate the facts of Jesus' death and resurrection, but until we have made Him our Lord, the facts do us no good (John 3:16–18; Acts 10:43; Romans 10:9). There is a difference between intellectual assent and saving faith. Knowing Jesus means we have accepted His sacrifice on our behalf (2 Corinthians 5:21).
Read more: http://www.gotquestions.org/knowing-Jesus.html