The Tree of Life is the ancient and mystical Kaballistic representation of the physical and psychical structure of man, the universe, the links between the two, and their results; human life. Here are some toughts on the matter:

Between humanity and God there exists a hierarchy of highly evolved beings which the Christian religion refers to us as the hierarchy of angels. Beginning with the highest, they are the Seraphim, Cherubim, Thrones, Dominations, Powers, Virtues, Principalities, Archangels and Angels. All of these orders serve as transformers for the powers emanating from the Creator. The Cherubim and Seraphim, those closest to the Lord, represent His love and wisdom. This love and wisdom descend, passing successively through the other orders – the Throne, Dominions and so on – to the Angels who transmit them to us in the form of life. Yes, the energies we receive and which make us living beings are passed to us by the Angels. You must meditate on the transformation of the divine quintessence through this succession of beings extending from the Throne of God until it reaches us. And in this perfect construction that is the universe, each planet is also a special transformer, just as in our bodies each organ transforms energies and sends them on to another organ. Yes, because the phenomena occurring in human beings are the same as those which occur in the universe.

Kether: the Crown; Chokmah: Wisdom; Binah: Intelligence; Chesed: Mercy; Geburah: Power; Tiphareth: Beauty; Netzach: Victory; Hod: Glory; Yesod: The Foundation; Malkuth: the Kingdom. Learn to meditate on the ten sephiroth of the Tree of Life; be conscious of the fact that this Tree exists inside you, and that the only worthwhile activity is to make it grow, flower and bear fruit. How long you will need before you become that Tree of Life must not concern you. It is possible you will need to refer to its image and breathe life into it for thousands of years, until the day when those ten sephiroth within you begin to vibrate and your inner being radiates with all the light, knowledge and wisdom of the Tree of Life.

We need a method to guide us in our spiritual work and point out the best path to follow. For me, the best method of all is the study of the Sephiroth Tree, the Tree of Life, and that is why I insist that you learn and deepen your knowledge of all its aspects. With Malkuth you give things material form. With Yesod you purify them. With Hod you understand and express them. With Netzach you give them grace. With Tiphareth you bring light to them. With Geburah you fight to defend them. With Chesed you submit them to divine order. With Binah you give them stability. With Chokmah you place them within universal harmony. Finally, with Kether you place the seal of eternity upon them.