“Attunement could occur through any of the great religions, but would be tied exclusively to none of them.”

As quoted in Karl Marx's "The Jewish Question" by ; as translated in Karl Marx, Frederick Engels : Collected Works (1975) edited by International Publishers

Second Epistle to J. Lapraik, st. 15 (1786).

"The Brooklyn Divines." Brooklyn Union (Brooklyn, NY), 1883.
Context: Of late years the thoughts of men have been turned, by virtue of modern discoveries, as the result of countless influences, to an investigation of the foundation of orthodox religion. Other religions were put in the crucible of criticism, and nothing was found but dross. At last it occurred to the intelligent to examine our own religion, and this examination has excited great interest and great comment. People want to hear, and they want to hear because they have already about concluded themselves that the creeds are founded in error.

Christianity not Mysterious (1696), Preface

The Conspiracy of Kings (1792)
Context: In every clime, thy visage greets my eyes,
In every tongue thy kindred accents rise;
The thought expanding swells my heart with glee,
It finds a friend, and loves itself in thee. Say then, fraternal family divine,
Whom mutual wants and mutual aids combine,
Say from what source the dire delusion rose,
That souls like ours were ever made for foes;
Why earth's maternal bosom, where we tread,
To rear our mansions and receive our bread,
Should blush so often for the face she bore,
So long be drench'd with floods of filial gore;
Why to small realms for ever rest confin'd
Our great affections, meant for all mankind.
Though climes divide us; shall the stream or sea,
That forms a barrier 'twixt my friend and me,
Inspire the wish his peaceful state to mar,
And meet his falchion in the ranks of war? Not seas, nor climes, nor wild ambition's fire
In nations' minds could e'er the wish inspire;
Where equal rights each sober voice should guide,
No blood would stain them, and no war divide.
'Tis dark deception, 'tis the glare of state,
Man sunk in titles, lost in Small and Great;
'Tis Rank, Distinction, all the hell that springs
From those prolific monsters, Courts and Kings.

Jacula Prudentum (1651)

Source: LSD : My Problem Child (1980), Ch. 11 : LSD Experience and Reality
Context: It could become of fundamental importance, and be not merely a transient fashion of the present, if more and more people today would make a daily habit of devoting an hour, or at least a few minutes, to meditation. As a result of the meditative penetration and broadening of the natural-scientific world view, a new, deepened reality consciousness would have to evolve, which would increasingly become the property of all humankind. This could become the basis of a new religiosity, which would not be based on belief in the dogmas of various religions, but rather on perception through the "spirit of truth." What is meant here is a perception, a reading and understanding of the text at first hand, "out of the book that God's finger has written" (Paracelsus), out of the creation.
The transformation of the objective world view into a deepened and thereby religious reality consciousness can be accomplished gradually, by continuing practice of meditation. It can also come about, however, as a sudden enlightenment; a visionary experience. It is then particularly profound, blessed, and meaningful. Such a mystical experience may nevertheless "not be induced even by decade-long meditation," as Balthasar Staehelin writes. Also, it does not happen to everyone, although the capacity for mystical experience belongs to the essence of human spirituality.

Prologue. Compare: "None think the great unhappy, but the great", Edward Young, The Love of Fame, satire 1, line 238.
The Fair Penitent (1703)