Just to make clear that Lee and Christianity in general say more or less the same thing:
Lee's book overview 'The calling of every believer is to come to the living person of Christ, leaving behind all religious forms and dead doctrines.'
Gotquestions says:
https://www.gotquestions.org/Christi...ationship.html
Religion is “the belief in and worship of a superhuman controlling power, especially a personal God or gods.” In that respect, Christianity can be classified as a religion. However, practically speaking, Christianity has a key difference that separates it from other belief systems that are considered religions. That difference is relationship.
In that regard,
Christianity is not a religion; it
is a relationship that God has established with His children.
Recommended Resource: Checklist Jesus: A Journey from Religion to Relationship by Jeremy Walker
In Christian bookstores, I'm sure we will find a number of books emphasizing relationship over religion.