human
It is clear that from such investigations some further mental equipment is necessary than that normally afforded by the human body. And here comes the parting of the ways between East and West. For the study of the material universe, our five senses, aided by the instruments invented by Science, may suffice. For all we can hear and see, taste and handle, these accustomed servitors, though often blundering, are the best available guides to knowledge. But it lies in the nature of the case that they are useless when the investigation is to be into modes of existence which cannot impress themselves on our nerve-ends. For instance, what we know as colour is the vibration frequency of etheric waves striking on the retina of the eye, between certain definite limits--759 trillions of blows from the maximum, 436 trillions from the minimum--these waves give rise in us to the sensation which the brain translates into colour. (Why the 436 trillion blows at one end of a nerve become 'Red' at the other end we do not know; we chronicle the fact but cannot explain it.) But our capacity to respond to the vibration cannot limit the vibrational capacity of the ether; to _us_ the higher and lower rates of vibration do not exist, but if our sense of vision were more sensitive we should see where now we are blind. Following this line of thought we realise that matter may exist in forms unknown to us, in modifications to which our senses are unable to respond. Now steps in the Eastern Sage and says: 'That which you say _may_ be, _is_; we have developed and cultivated senses as much superior to yours as your eye is superior to that of the jelly-fish; we have evolved mental and spiritual faculties which enable us to investigate on the higher planes of being with as much certainty as you are investigating on the physical plane; there is nothing _supernatural_ in the business, any more than your knowledge is supernatural, though much above that accessible to the fish; we do not speculate on these higher forms of existence; we _know_ them by personal study, just as you know the fauna and flora of your world. The powers we possess are not supernatural, they are latent in every human being, and will be evolved as the race progresses. All that we have done is to evolve them more rapidly than our neighbours, by a procedure as open to you as it was to us. Matter is everywhere, but it exists in seven modifications of which you only know four, and until lately only knew three; in those higher forms reside the causes of which you see the effects in the lower, and to know these causes you must develop the capacity to take cognisance of the higher planes.'
gpt
What part does man play in this vast drama of a universe? Needless to say, he is not the only living form in a Cosmos, which for the most part is uninhabitable by him. As Science has shown living forms everywhere on the material plane, races in each drop of water, life throbbing in every leaf and blade, so the 'Secret Doctrine' points to living forms on higher planes of existence, each suited to its environment, till all space thrills with life, and nowhere is there death, but only change. Amid these myriads are some evolving towards humanity, some evolving away from humanity as we know it, divesting themselves of its grosser parts. For man is regarded as a sevenfold being, four of these parts belonging to the animal body, and perishing at, or soon after, death; while three form his higher self, his true individuality, and these persist and are immortal. These form the Ego, and it is this which passes through many incarnations, learning life's lesson as it goes, working out its own redemption within the limits of an inexorable law, sowing seeds of which it ever reaps the harvest, building its own fate with tireless fingers, and finding nowhere in the measureless time and space around it any that can lift for it one weight it has created, one burden it has gathered, unravel for it one tangle it has twisted, close for it one gulf it has digged.