To avoid violating the copyright, I will try to restate what I have just read about death and the dying process.
Death is simply the process of focusing consciousness on a higher plane, and is closely related to sleep. A spiritual aspirant works on the higher planes while the physical body sleeps. When he or she dies, they continue their work, but without the return to the body consciousness. For the average good person, there is not much change, and they may not even realize the physical body has died.
To quote directly:
"For the wicked and cruelly selfish, for the criminal and for those few who live for the material side only, there eventuates that condition which we call 'earth-bound'. The links they have forged with earth and the earthward bias of all their desires, force them to remain close to the earth and their last setting in the earth environment. They seek desperately and by every possible means to re-contact it and to re-enter."and:
"Death, as the human consciousness understands it, pain and sorrow, loss and disaster, joy and distress, are only such because man, as yet, identifies himself with the life of the form and not with the life and consciousness of the soul, the solar angel ... The moment a man identifies himself with his soul and not with his form, then he understands the meaning of the Law of Sacrifice; he is spontaneously governed by it; and he is one who will, with deliberate intent, choose to die. But there is no pain, no sorrow, and no real death involved.
...The intent is for man to die, as every man has to die, at the demand of his own soul. When man has reached a higher stage in evolution, with deliberation and definite choice of time, he will consciously withdraw from his physical body. It will be left silent and empty of the soul, devoid of light, yet sound and whole; it will then disintegrate, under the natural process, and its constituent atoms will pass back into the 'pool of waiting units', until they are again required for the use of incarnating souls."