But there's more to what Christianity means by the resurrection of Christ. His resurrection was more than mere resuscitation. Resuscitation means restoring (or bringing) someone back to life from death (or unconsciousness). People don't have problems with resuscitation. Many have been declared medically dead and somehow brought back to life. But Jesus' resurrection was more than just resuscitation. Remember what Martha confessed about her understanding of resurrection? All the dead would be raised on the last day either unto everlasting life or everlasting shame. In His resurrection Jesus did not just come back to life, only to die again later: that happened to many people. In His resurrection Jesus was raised unto eternal life.
That is what people have a hard time believing and understandably so. Jesus' resurrection is difficult to believe because we don't see anything like that ever happening. After all, it's contrary to the laws of nature. On a pleasant day like today, death may seem unreal, too. But at least we know it happens everyday, everywhere. Many of us have witnessed death. But Jesus' resurrection is a totally different story, isn't it?