“A perception, sudden as blinking, that subject and object are one, will lead to a deeply mysterious understanding; and by this understanding you will awaken to the truth.”
The Wan Ling Record of Xiu Pei, quoted in Why Lazarus Laughed: The Essential Doctrine, Zen — Advaita — Tantra (2003) by Wei Wu Wei
Help us to complete the source, original and additional information
Huangbo Xiyun 6
Chinese Zen BuddhistRelated quotes

The Second Coming of Christ: The Resurrection of the Christ Within You, (2004) by Yogananda

“Space, subjectively, is the coexistence of perceptions — perceiving two objects at once.”
Source: Fallen Leaves (2014), Ch. 6 : Our Souls

Kein Mensch kann sich selbst je verstehen, denn dazu müßte er aus sich selbst herausgehen, dazu müßte das Subjekt des Erkennens und Wollens Objekt werden können: ganz wie, um das Universum zu verstehen, ein Standpunkt noch außerhalb des Universums erforderlich wäre.
Source: Sex and Character (1903), pp. 105-106.

Never Born, Never Died (2002)
Context: Tao mystics never talk about God, reincarnation, heaven, hell. No, they don't talk about these things. These are all creations of human mind: explanations for something which can never be explained, explanations for the mystery. In fact, all explanations are against God because explanation de-mystifies existence. Existence is a mystery, and one should accept it as a mystery and not pretend to have any explanation. No, explanation is not needed — only exclamation, a wondering heart, awakened, surprised, feeling the mystery of life each moment. Then, and only then, you know what truth is. And truth liberates.
“It is not truth that is validated by a proof, but one’s understanding of it.”
Why I Am a Muslim: And a Christian and a Jew (2020)