I believe that in our period it is definitely necessary that, as far as possible, the paint is applied in pure colours, set next to each other in a p… - Piet Mondrian

You write you could never be a Theosophist. Well I suppose I could say the same thing, if you're referring to what most theosophists are. But that does not alter the fact that I believe that the principles of theosophy are true, and that it leads to clarity in one's spiritual development. Which means that we [= Mondrian ànd the catholic painter and his former teacher L. Schelfhout, after their reconciliation] quite agree on this point. Self-awareness is, in my view, of crucial importance to all human beings. I can understand how the Catholic doctrine may lead to vagueness, but Theosophy, which is a spiritual science, can never do so.

The abstract human mind will have to receive the intended impression by its own means. I always confine myself to expressing the universal, that is, the eternal (closest to the spirit) and I do so in the simplest of external forms, in order to be able to express the inner meaning as lightly veiled as possible.

Now the only problem is to destroy these lines also through mutual opposition. ..[note under his letter]: I think that the destructive element is too much neglected in art.