The expression ‘touching enlightenment with the body’ (used by Reggie Ray in his excellent book) is not modern; it has its antecedents in the Pali canon. (If anyone wanted to track them down, I’d refer them to Ch.4 Richard Gombrich’s ‘How Buddhism Began’ for lots of examples.)
For example, in the Kītagiri Sutta (MN70) we hear of “a certain kind of person who touches with her body those tranquil , immaterial states of release, states transcending form, and dwells in them…” (My translation, not Gombrich’s.) Therewith, her “taints are destroyed by insight.”
Another example, elsewhere, from Gombrich: Maha Cunda speaks of those who “touch the deathless state with their bodies and stay there.”
My point here is that it is important and very valuable to invite the meditating body to receive the formless states when they arise; to have them both there, both form and formlessness. The formless states bring a corresponding feeling which permeates the body, transforming it. My oral instruction to students, at such a time, goes something (à la Gendlin) like: “Let yourself have the kind of body that goes with this experience.”