Zil said:
It's still essentially the same thing as my earlier example. The power to heal a person is coming from within the person being healed. The divine influence of a cleric's healing spell or touch is now just a catalyst (or inspiration). And as such, it represents a radical departure from past versions of the game; it diminishes the role of a cleric to heal based on channeling the power of his or her god. Whether or not you like this I suppose depends on how attached you are to the idea that a cleric's healing touch/spell really is divine energy passed from a god/pantheon/faith.
If this is really how healing works in 4E, the big healers in a group should be the 4E bard because they are all about inspiring others.
In general, we've seen for healing surges:
Second Wind - A character 'summons' their ability to put themselves 'farther' from getting to the dying/bloodied condition by taking some time to catch their breath, like a boxer going back to the corner so they can 'shake it off'.
Warlord - The "corner man" shouts some encouragement, causing the person to snap out of it, 'shake it off' and basically, take a second wind without having to take the time [i.e. action] to do so.
Cleric - Similarly, they say a prayer and some comforting words, which similarly inspires the second wind type effect ... however, there is added benefit of their god helps to bolster the ally with additional healing through divine power.
In all those cases, a person can only be 'patched up' so much before they ultimately colapse under accumulated scrapes, scratches and bruises. The "limit" actually causes a different kind of simulation. Where as before, given enough wands/potions ... you could heal the party indefinitely, all the healing we've seen so far [note: seen so far] have been tied to the surges, and thus, a person can only be patched up so often before they need a good 6 hours of rest to "really" heal up.
With the Palidan, it's a bit different ... their gods [who they seem to be tied closer to. They HAVE to pick a god and HAVE to be his allignment ... the clerics don't seem to be as bound to their dieties as much as pali's] allow them to pass their own vitality onto others. Giving up their own ability to withstand damage and stave off death over time to allow their ally to do so instead.