I have a deep relationship with these two bhajans. Few years ago in college these would play, over and over again and give me the kind of inner-ecstasy for which finding words is impossible. The technical part of the composition aside, I think they have been sung from some deep inner space for which 'sacred' is the only term that comes to my mind.
These are not meant for casual listening. You can enjoy them when u listen to them in a relaxed state. Singers are Ashwini Bhide and Kishori Amonkar both renowned artists.