The story of Easter is the story of family dysfunction of sorts, and its reconciliation. Christianity says God is the creator of us all. But since he is perfect and all humans have done evil, people have offended him. (Everyone has done something wrong in their lives.) So there is a break in the relationship. In effect, God doesn't talk to us in our natural state. His back is practically turned to humanity. And people have a natural hostility to God. Thus, it's like the dysfunctional family where the father and son don't speak to each other.
So what? If people don't have a relationship with God, what's the big deal? Like the sun which gives life to the planet, God is the author of life, goodness, and love. He's put those attributes into us. You see them in young children, in humans in their most innocent state. As we age, life weighs us down and we load ourselves down with guilt. We lose much of the 'life' God has given to us.
But he can give those back to us. People want to know God. They know he's out there.
People know there is a point to life. The basic question "what is the meaning of life" remains despite our technological age.
People even know there is life after death. The Bible says God "set eternity in the hearts of men". Does this ring true for you? I see headlines every day of people using technology to extend their lives to strive towards immortality. But we'll never reach it.
Christianity says God, knowing this tragic situation, created a solution. If death is the punishment for the wrong actions of humanity, then God created a workaround. (It seems God, in addition to being creator, also wears a 'judge hat'. It makes sense if he's going to sort out the injustices of life one day. The tyrant, the sociopath don't "win" ultimately. God will call them to answer one day for their crimes.)
God's workaround means that the punishment of death has already been paid. God offered his son Jesus. God preferred to punish his son than to see all of humanity separated from him in this life and the afterlife.
So now...God can extend his hand to all people for a relationship. His back doesn't have to be turned to mankind any longer. Every prayer offered to God in the name of Jesus is heard! Anyone who wants to know God...can. The real hurdle is simply to acknowledge that God is our creator, offended by sin, but offers grace to all through Jesus. Everything is through Jesus.
And as a statement that Jesus's death was from God (not some coincidence that we've gotten confused about), he raised his son Jesus from the dead. Jesus is the only great man who ever claimed to rise from the dead. Does it take faith to believe this? Yes. But no more faith that it does to believe in the Big Bang or in Einstein's theories that people accept even though they have no way of independently verifying these. They go through a checklist of sorts: does this make sense? does this explain how the world works? is this reasonable? are the people who promote these theories deserving of my trust? And they make a decision.
Appendix: Some clarification...Christians still naturally die. We know that. All people will undergo that transition but Christianity says the "Holy Spirit, is a deposit guaranteeing our inheritance". That means when we have relationship with God, he comes to live in us. We feel his presence. That is our assurance for our eternity with the author of life, love, and goodness. Put another way, the Bible says to believers: "...the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus." True Christians will have the peace of God resting on their hearts. This is their assurance.