What profit gains whole world but loses one’s life or soul

Mark 8:34-37
[34]Then Jesus called the crowd and his disciples to him. “If anyone wants to come with me,” he told them, “he must forget self, carry his cross, and follow me.
[35]For whoever wants to save his own life will lose it; but whoever loses his life for me and for the gospel will save it.
[36]Do people gain anything if they win the whole world but lose their life? Of course not!
[37]There is nothing they can give to regain their life.