Even the whole outward Baptism that Christians do is based off an inward experience as the soul cleanses itself of his karmas.

Pool of nectar in Daswan Dwar

Personally I have lots of inner work to do to experience what my guru and other mystics have taught in the past such as Jesus, Buddha, Guru Nanak. No wonder these mystics and monks put it long hours of meditation, the journey is long but fruitful.