I am straining every nerve,158 sisters, to explain to you this operation of love, yet I do not know any way of doing so. For it seems a contradiction to say that the Beloved is making it very clear that He is with the soul and seems to be giving it such a clear sign that He is calling it that it cannot doubt the fact, and that the call is so penetrating that it cannot fail to hear Him. For the Spouse, Who is in the seventh Mansion, seems to be calling the soul in a way which involves no clear utterance of speech, and none of the inhabitants of the other Mansions -- the senses, the imagination or the faculties -- dares to stir. Oh, my powerful God, how great are Thy secrets, and how different are spiritual things from any that can be seen or understood here below. There is no way of describing this favour, small though it is by comparison with the signal favours which souls are granted by Thee.
158 [The verb used is deshacerse, "to undo oneself", implying here the utmost effort.]