Hello,
Thanks for your response. The Islamic philosopher Ibn Arabi is known for his doctrine of wahdat al-wujud, a perspective on reality which has been translated as the 'Unity of Existence'.
However, Ibn Arabi never actually uses this term, and his focus isn't so much on metaphysical statements about the universe, but rather on the perfection of humankind. He uses the term al-insan al-kamil, 'The Perfected Human', to describe the product of this perfection, and his book Fusus al-Hikam is an exploration of how each aspect of the Perfected Human is reflected in a series of prophets.
Taken in this light, the doctrine of wahdat al-wujud can be understood as a metaphysical supplement to the idea of the Perfected Human. Namely, such a person engages in the world with a deep understanding and appreciation for the interbeing of all things, taking neither themself or any other being as independent of the whole, but recognizing all phenomena as intimately connected.
That is how the Perfected Human, having glimpsed the true nature of reality, enters into a harmony with the universe, bringing them the bliss and serenity which is typically associated with the religious mystic, and which we can only speculate that Ibn Arabi himself achieved.