Gregory the Dialogist

At this my heart trembled, and was moved from its place. Because, while fear strikes the mind, it estranges it from itself, the Latin translations sometimes call an ecstasy fear, as is said by the Psalmist, I said in my fear, I am cast out from the sight of Thine eyes; [Ps. 31, 22] Where, namely, it could have been called not fear, but a transport ['excessus']. But fear is in that place used for transport, because the mind is estranged from itself in fear, as it is a transport. …

Morals on the Book of Job, Book XXVII ↗

Thomas Aquinas

Now this is the most wonderful thing that earthly and corruptible man is advanced to the possession of spiritual and heavenly things, and so he says, "About this," that man can ascend to possess the light, "my heart trembled," from the fear of wonder and astonishment, "and leapt out of its place," so that it not only desires and eagerly strives after those things seem connatural to it according to the sensible life, but also is transported to spiritual and heavenly things.

Commentary on Job ↗