Astral plane

It is for this reason, you know, that some are accustomed to say that his consciousness corresponds with the nature of the fixed stars, his reason in its contemplative aspect with Saturn and in its social aspect with Jupiter, (and) as to his irrational part, the passionate nature with Mars, the eloquent with Mercury, the appetitive with Venus, the sensitive with the Sun and the vegetative with the Moon.

[5] The expositions of Ibn Sina (i.e.Avicenna), the Brotherhood of Purity and others, when translated into Latin in the Norman era, were to have a profound effect upon European medieval alchemy and astrology.

[6] Throughout the Renaissance, philosophers, Paracelsians, Rosicrucians, and alchemists continued to discuss the nature of the astral world intermediate between Earth and the divine.

Once the telescope established that no spiritual heaven was visible around the Solar System, the idea was superseded in mainstream science.

[8] According to Max Heindel's Rosicrucian writings, desire-stuff may be described as a type of force-matter, in incessant motion, responsive to the slightest feeling.

In the higher regions of the desire world thoughts take a definite form and color perceptible to all, all is light and there is but one long day.

In his book Autobiography of a Yogi, Paramahansa Yogananda provides details about the astral planes learned from his guru.

[9] After this transitional stage, the soul may then move upward to the more subtle causal spheres where many more incarnations allow them to further refine before final unification.