Messiah said the Kingdom is specifically within His disciples. He also clarified, if you remain in His words you are truly His disciples. His words/teachings are what are key here. If you build your life on His teaching you are like a man who builds his home on a foundation of rock - when the storms and floods come you are safe. If you build your life on anything other than His teaching you are like a man who builds his house on the sand - when the storms come you will be swept away.

Looking for some hidden keys of knowledge within any other teachings other than the Word of God is dangerous. And it is unnecessary. The child with Down’s Syndrome, though lacking in the ability to read the volumes of the Zohar, the Sefer Yetzira, Shaarei Kedusha, etc., has just as much access to Messiah’s teachings and God’s friendship.

Please be careful in your pursuit of spiritual things that you aren’t swept away - “As above so below” is a famous occult principle. It sounds good to the undiscerning. As above (Satan is the prince of the power of the air), so below (aka Hell). Rather stick to Yeshua’s teachings - Our Father’s will be done on earth as in Heaven.

Walking with God is far far more difficult than merely complicated intellectual pursuits - which admittedly give a false sense of accomplishment and special status among peers, but are ultimately NOT what God is asking of us.

Master Yeshua’s teachings first - both in believing Him and doing His commands. He talks about Geihinnom a lot, it’s nature, and how to avoid it… which is ultimately why He was born, died and rose again (and is Returning!).