I was thinking about this talent yesterday as I pondered the development of my sage/healer. It's nice in concept, and thematically it fits, but the talent actually seems a bit weak. You can commit 1 force die for 24 hours to gain between 1 and 3 extra wounds depending on rank, or you could use a stimpack. That doesn't even get into the fact that most Healers are probably going to have the Heal/Harm power, which renders the healing trance even more redundant.
How is it redundant? Unless I'm reading it wrong, the Heal power can't be used on oneself.