When the women who had gone to anoint Jesus’ body on the first Easter morning returned to the Apostles with the news that they had seen the Risen Lord, the Apostles refused to believe it. The story seemed like nonsense to them. That night, when Jesus appeared to them, He chided them for their stubborn refusal to believe.
The Apostles clearly were not engaged in wishful thinking, or a desire to make up the Resurrection story. If they were, then they would readily have used the women’s story as a starting point.
In reality, they came to believe because they saw and touched the Risen Lord. This gives us confidence. Death has been conquered, and therefore we can fight the culture of death, knowing that the victory of life is more than wishful thinking.