“First of all you are taught the fourth dimension. If you have understood that principle, of the dimensions, you can understand this. For example, as I said, you don’t need to exteriorise yourself to go from one plane to another, when going to the most subtle planes to pass from the last most subtle plane to what we call Nirvana — to express it somehow. It is not necessary. You can, through a kind of interiorisation and by passing into another dimension or other dimensions... you can find in any domain whatever of your being this non-existence. And truly, one can understand a little bit of this without experiencing it. It is very difficult, but still, even without the experience one can understand just a little, if one understands this, this principle of the inner dimensions.
It can be put like this (you see, it’s one way of saying it) that you carry within yourself both existence and non-existence at the same time, the personal and the impersonal, and... yes... the manifest and unmanifest... the finite and the infinite... time and eternity. And all that is in this tiny little body.
There are people who go beyond — even mentally, you see... their mental atmosphere goes beyond their body, even their vital atmosphere goes beyond their body — there are people whose consciousness is vast enough to extend over continents and even over other earths and other worlds, but this is a spatial concept. Yet by an interiorisation in other dimensions, the fourth and more, you can find all this in yourself, in one point... the infinite.”
- Questions and Answers 1955, p.245