a snippet from "In the Light of Truth" The Grail Message

Silence ~ When a thought suddenly strikes you, keep it back, do not utter it at once but nourish it; for it will condense through being retained in silence, and gain strength like steam under counter-pressure.
Pressure and condensation produce the quality of a magnetic activity, in accordance with the Law that all that is stronger attracts what is weak. Similar thought forms are thus attracted from all sides and retained, constantly reinforcing the power of your own, your original thought, yet working in such a way that through the joining of other forms the originally produced form is refined, changes, and takes on different shapes until it comes to maturity. Indeed you sense all this inwardly, but you always think it is entirely your own volition. But you never give purely of your own volition in any matter, there are always other influences as well!
What does this process tell you?
That only in the union of many elements can anything perfect be created. Created? Is that right? No, but formed! For there is really nothing new to be created; in everything it is merely a matter of producing new forms, since all the elements exist in vast Creation. But these elements are pressed into service for the way to perfection, which is brought about through union…
... A single individual cannot offer you perfection, but the whole of humanity, with all its varied characteristics, may do it! Each individual has something which is definitely part of the whole. And this is also why one so far advanced as no longer to know any earthly desires loves all mankind, not one individual, because only the whole of mankind can make the strings of his mature soul, laid bare through purification, sound the chord of heavenly harmony. He bears the harmony within himself, because all strings vibrate….
Let us return to the thought that attracted the other forms, and thereby became strong and ever stronger. It finally emerges beyond you in firmly united power-waves, breaks through your own personal aura, and exerts an influence upon your wider environment….

Always bear in mind: Expressed according to our concepts, all that is spiritual is magnetic, and you know the stronger always overcomes what is weak through attraction, through absorption. In this way "from him that hath not (the weak one), even that which he hath shall be taken away." He becomes dependent.
There is no injustice in this, but takes place according to the Divine Laws. Man only needs to pull himself together and will aright, and will be protected from it…
Thus it happens that through indolence many become spiritually dependent, and sometimes, in the end, they hardly possess the ability to develop thoughts of their own…
It must be emphasized that only the homogenous will be attracted. Hence the proverb, "Birds of a feather flock together." Thus drinkers will find each other (gamblers, etc)…yet noble characters will also come together for a high aim.

But it goes further: Whatever is drawn to another spiritually will eventually also manifest physically, since everything spiritual penetrates into the gross material, whereby we must bear in mind the Law of Returns, because a thought always remains connected with its origin and radiates back to it through this link…
Beware of confused thoughts, of all shallowness in thinking. Carelessness will exact a bitter revenge; for it will speedily debase you to the level of a playground for alien influences, through which you very easily become sullen, moody and unjust to your surroundings.
... If you have a genuine thought and cling to it, then the gathered power must eventually also press towards realization; for the evolution of everything takes place entirely in the spiritual, since every power is purely spiritual. What then becomes visible to you are always only the final effects of a preceding spiritual-magnetic process, which takes place continually and uniformly according to a firmly established order.

Observation of your thoughts and feelings will soon prove to you that all real life can be in truth only be spiritual life, in which alone the origin and also the development lie. You must come to the conviction that everything you see with your physical eyes in reality is only the manifestations of the eternally driving spirit.
Every action, even the slightest movement of a human being, is indeed always first spiritually willed. The physical bodies merely act as spiritually animated instruments, which themselves only took shape through the power of the spirit. The same applies to trees, stones and the whole earth. Everything is animated, permeated and driven by the Creative Spirit.

from In the Light of Truth: The Grail Message by Abd-Ru-Shin