An Anthem is a start. It sets the tone.
If The Anthem seems uncomfortably  strange, difficult to follow, hard to swallow, too doctrinal and specific, alien to your ideas and beliefs, then it is very unlikely you would want, or be able, to accept the gifts to come. It is best you cruise to another site.
The Anthem tells much about John, but it is only an Anthem.
If you want to understand The Anthem better, it helps to have a book named “The Bible”. In that book are a number of ‘sub-books’ or chapters. Among these, you will find three from which excerpts appear below which are central to the words of The Anthem.

“I John, who also am your brother, and companion in tribulation, and in the kingdom and patience of Jesus Christ, was in the isle that is called Patmos, for the word of God, and for the testimony of Jesus Christ.”

The Revelation of John 1:9

“The Revelation of Jesus Christ, which God gave unto him, to show unto his servants things which must shortly come to pass; and he sent and signified by his angel unto his servant John.”

The Revelation of John 1:1-2

“And as Jesus passed forth from thence, he saw a man, named Matthew, sitting at the receipt of custom: and he saith unto him, Follow me. And he arose, and followed him”

The Gospel of Matthew 9:9

“And I say unto thee that thou are Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it. And I will give unto thee the keys of the kingdom of heaven; and whatsoever thou shall bind on earth shall be bound in heaven; and whatsoever thou shalt loose on earth shall be loosed in heaven.”

The Gospel of Matthew 16:18-19.

“Then Peter, turning about, seeth the disciple whom Jesus loved following; which also leaned on his breast at supper, and said, Lord, which is he that betrayeth thee?
Peter seeing him said to Jesus, Lord, and what shall this man do?
Jesus saith unto him, If I will that he tarry till I come, what is that to thee ? follow thou me.”

The Gospel of John 21:20-22