You need to pray, just like always. That spiritual technology has not changed one iota. We know less about spirit world than Jesus Christ obviously knew. Buddha reached the Divine Light in introspective meditation. Moses met and talked with God face to face.
Religion is necessary.
Religions can't unite. They are the hardest, the last, to unite. Businessmen can unite to make money, politicans can unite by compromising, diplomats can unite with the threat of armies behind their backs. Empires can unite by conquering. But religions only divide and split up into smaller and smaller mutually inimical fractions and denominations.