If you can wade through it!
That day may one day come, but a priest should prioritize Scripture and Catechism over private devotions at all times - especially when he is a guest in someone else's parish.
Unless he pridefully believes that he is given a greater faculty of spiritual discernment than the Church in these matters, he would do best to stick with the publicly proclaimed teaching of the Church and not the private teaching of individuals.
Lots of good points, I don’t agree with his inference from Descartes’ comment.
bkmk