Great discussion of the sayings of Thomas.
As a practicing Christian, I have had similar mystical experiences, though mine have most frequently come through music.
These experiences always contribute to spiritual growth, which, in my case, has led to a much stronger sense of God within--best expressed to me in the works of Tolstoy.
Christianity, to me, is more a "way" of life more than a philosophy. I consider my own faith an ongoing personal epistemology--changing all the time.