Do you know a proper source for this beautiful quotation?

Concerning nonduality and advaita vedanta please can someone give me a proper source for;

“Like two birds of golden plumage, inseparable companions, the
individual self and the immortal Self are perched on the branches of the
self same tree. The former tastes of the sweet and bitter fruits of the
tree; the latter, tasting of neither, calmly observes.

“The individual self, deluded by forgetfulness of his identity with the
divine Self, bewildered by his ego, grieves and is sad. But when he
recognizes the worshipful Lord as his own true Self, and
beholds his glory, he grieves no more.” from the Hindu Bhagavad Gita

‘Love Ego & Presence’ Kabir Helminski The Knowing…

‘Love, Ego & Presence’ – Kabir Helminski The Knowing Heart: A Sufi Path of Transformation pp49-50

“We do not reach love completely on our own. If we are loveless in and of ourselves, it is because we are living with our center of gravity in the false self. The false self is created from the desires and compulsions of our own separateness. This false self believes strongly in its own existence as separate from the rest of life, and it recruits the intellect to help defend this illusion at the expense of the whole of the mind.

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