Author Steven K Scott takes us into what Jesus had said about 'Eternity' in his book, "Greatest Words Ever Spoken".
Jesus tells us in the scriptures what life is like in Heaven. He is the only one who knows because He alone came from Heaven. He alone is the one who knows the Father. He alone is the One who knows about the Kingdom and about the Father.
Regardless if it's about heaven or if it's about hell, as long as we are dealing with eternal issues, Jesus Christ is the one who holds the truth.