Raising the kundalini is only the first stage of the work. Complete awakening only comes afterward, with many more years of intense work.
"We knew a Lady-Adept of the White Lodge who fabricated her Solar Bodies in merely ten years of very intense work in the Ninth Sphere. That Lady lives with the angels, Archangels, Seraphim, etc. By working very intensely in the Ninth Sphere without allowing oneself to fall, one can carry out the work of fabricating the Solar Bodies in ten or twenty years, more or less." - Samael Aun Weor, Esoteric Treatise of Hermetic Astrology
The number forty represents the letter Mem.