All the manifested world of things and beings are projected by imagination upon the substratum which is the Eternal All-pervading Vishnu, whose nature is Existence-Intelligence; just as the different ornaments are all made out of the same gold.
If a man proves too clearly and convincingly to himself...that a tiger is an optical illusion--well, he will find out he is wrong. The tiger will himself intervene in the discussion, in a manner which will be in every sense conclusive.
I have observed dreams and visions very carefully, and am now certain that the imagination has some way of lighting on the truth that the reason has not, and that its commandments, delivered when the body is still and the reason silent, are the most binding we can ever know.
even
The bed of love, that in the imagination
Had seemed to be the giver of all peace,
Is no more than a wine-cup in the tasting,
And as soon finished.
The human understanding is moved by those things most which strike and enter the mind simultaneously and suddenly, and so fill the imagination; and then it feigns and supposes all other things to be somehow, though it cannot see how, similar to those few things by which it is surrounded.
People read a lot of stories about witches, fairies, paranormals, and children possessed by evil spirits. They go to films showing rituals featuring pentagrams, swords, and invocations. That's fine, people need to give free reign to their imagination and to go through certain stages. Anyone who gets through those stages without being deceived will eventually get in touch with the Tradition.