The website from which I took these symbols/diagrams says that: "Unless the Son of God personally teaches you the meaning of these symbols, you cannot enter the Kingdom of God."

Based on my experience so far there's some truth in that statement.
I've been trying to wake up the reality to which these symbols are pointing at for a few years now with some degree of success.

Does someone else have any experience about waking up the Tree of Life?

I've noticed that these symbols are usually intepreted as chakra diagrams.
And some are trying to fit them into a "traditional" yogic chakra model. Which means that you basically stay within the boundaries of physical body. But I've noticed that these Tree of Life symbols are actually trying to describe the spiritual body too, which goes beyond the physical body chakra system.

"Then Jesus asked, "What is the kingdom of God like? What shall I compare it to? It is like a mustard seed, which a man took and planted in his garden. It grew and became a tree, and the birds of the air perched in its branches." Luke 13:18-19

Greetings! I think you on to something here but I am not well versed in the Kabbala but would love for you to expound more.

Greetings lighting strikes twice!

I'm not well versed in Kabbalah either. But I do know something about it based on what I'm experiencing in meditation.

According to my understanding and experience this is how the above symbol corresponds to human psychospiritual physiology:

The centerline which goes from earthly kingdom to heavenly kingdom is a what taoist call the thrusting channel and kabbalah calls middle pillar. It goes up through the center of the body. You raise the energy up through that route. This is the "inner tree of life" or masculine tree. This is connected to the left side of the brain. Establishing the middle pillar should not be confused with raising the kundalini. As far as I understand the middle pillar is supposed to use earth energy instead of sexual energy, which kundalini uses instead. And if done properly middle pillar is more stable.

Everything around the centerline forms the "outer tree of life" or feminine tree. It's a spirit body around the physical body. Physical and spiritual bodies have their own energy. That's why you shouldn't confuse the spirit body with the body energy that you feel within the physical body. It's not the aura either, because aura is the light radiance of body energy. The spirit body or the "outer tree of life". This is connected to the right side of the brain.

The Love sphere in that picture is the Heart center/chakra. Your body is sitting on the foundation (Creation).

I don't advocate beginning from waking up the Tree of Life directly. That's because Jesus said that the kingdom of Heaven starts from a small seed which eventually grows into a tree. If a person is seeking the Kingdom of God, it's important to begin from the right place. Basically it's the Love sphere in the Kabbalah Tree symbol.

This is what I have done: Based on what the Bible says about things, I have invited God's Spirit to live inside the temple that I am and I have fed His presence within me with Love and worship. After stabilizing this experience of loving union with God within me I have established a connection with Heaven. Now I allow the Love and Light from Heaven to nourish the presence of God within in me through loving union with Heaven. Doing this seems to be waking up the reality which is called the Tree of Life.

Jesus has said: "seek first his kingdom and his righteousness, and all these things will be given to you as well." (matthew 6:33).

" Love the Lord your God with all your heart and with all your soul and with all your strength and with all your mind' ; and, 'Love your neighbor as yourself." (luke 10:27)

And "The eye is the lamp of the body. If your eyes are good, your whole body will be full of light. (matthew 6:22)
(You establish connection with Heaven through the lamp of the body and the heart)

Greetings and thank you TuomasT! One of His disciples asked, how will we see you Lord and not the other's. The lord replied, for anyone who does my Fathers Will, I shall manifest myself unto him and my Father and I shall come unto him and sup and dwell with him (memory). This is true you know. Yes, awakening can be dangerous, just as it is in raising the kundalini without a proper guide. One must be born again to See the Kingdom and born again to Enter the Kingdom (Jesus). I have seen the single eye.

Hello again! Paul of the bible said, I knew a man above 14 years ago. Such an one was caught up in to the third Heaven and seen things and heard things which is unlawful for a man to utter. Strange huh?