Spiritual is a higher connection to your soul/ self , the universe, nature, others. I think it usually entails the soul and consciousness as it's core to percieve and understand (experience) Psychic- is outside the 5 senses. Clairaudience, Clairvoyance, Precognition, things you percieve that you do so with extra senses.
Dreams, visions, hearing, or other ways. Religious- can be ecstatic, joyous affirmation of God or Jesus, or Krishna, or whatever you believe in. But it brings you proof, guidance, love, whatever.
Sometimes it can just be a communal experience in a church. Or speaking in tongues. It is tied to your religion and reinorces it IMO.
They can all kind of intertwine with eachother though. Spiritual can be religious can be pychic etc.
I think, all the three happen to a being almost at the same level of consciousness and awareness and the line of demarcation amongst them is quite faint. Any how the main differences amongst them are that the spiritual experiences are unique and individual and may not have happened in the same way to anyone else, the psychic experiences usually involve the other and may indicate or predict about a collective reality, religious experiences always belong to a particular belief system, religion, deity, God or a collective faith.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.