What did Ibn al-Jawzi mean by his statement: "Then, indeed, He manifests to me at every moment in a new creation; I see Him therein through the perfection of that making and the beauty of that which is made," and does this entail a resemblance to the Sufi doctrine of Hulul (incarnation/indwelling)?

Ibn al-Jawzi was neither a Sufi nor a pantheist (advocate of hulul), but rather he condemned them in his books, including "Talbis Iblis" (The Devil's Deception). His intention behind the phrase "I see Him in it" was to reflect on Allah's perfect creation and artistry, which increases love [for Him] and demonstrates His existence and immense benevolence, similar to the poet's saying: "And in everything there is a sign, testifying that He is One."