Hi, I am only adding some stuff that I found about "heaven".
Whereas in the old ancient world view where people thought happings in heaven had impact to happening on earth and viceversa and the dwelling of God was imagened to be in the most upper sphere and perhaps you could easily climb a ladder up to heaven like Jacob did, or that God dwelled in the temples on earth, nowadays and after centuries of reinterpretation the church says that HEAVEN is only a feeling in your heart the state of beatitute, especially the beatitude of recognizing the divine, true, unlimited, undestructable life, mercy and glory and yes also the threefold "holiness" of god.
Living without beatiude of gods love is living like "outside heaven". so heaven is understood today only as illustrative word for blessings in communion with god and not only a as location where people exist in the afterlife. Likewise the hell is understood today by the church not as place or location but as the opposite situation to heaven, where people dont have the blessings of love and mercy.
Very interesting is that the church teaches that we can have the heaven in our heart, because we have Jesus in our hearts. Jesus is our way to heaven. You have heard all these texts of Jesus, If i read them again I understand that the blessings of HEAVEN are available alread now and not yet after death. Many pictures in the bible tell us about that we are already children of heaven and that heaven is the encounter of god, god himself, the presence of god in us, his dwelling in our hearts, the experience all believers make. Jesus said that the heaven is something very easy.
"I am the way" to heaven,
"I am the door" to enter the mercy and glory of the fathershouse,
"I am the eternal life" that you long for and look after, i give it to you,
"I am the bread of the HEAVEN", that strengthens you on your way.
"I am the word" that god speaks to your heart
"I am the light" that enlightens you, so that you find the way.
"I am the truth" that you are looking for.