What about the mystics?

I am trying to understand the concept of the mystics in early Christianity - St. Theresa, St. Francis, etc.

Is this is a valid thing or something from a time past that we can't recapture today? What about contemplative prayer? I've read some articles that state this is more new age than Christianity.

But what about those who feel as if they don't really fit in this world? Those who hunger deeply for presence of God, to catch a whiff of the scent of Jesus and Heaven?

I realize that lifestyle is romanticized, yet who can help but yearn for the solitude to linger with Him, to be swept away and romanced by the Lover of our souls?

Oh, Jesus. I am so lonely for You.