Sneak of Shadows question

[Sydril]

From: http://compendium.ddo.com/wiki/Feat:...eak_of_Shadows


Past Life: Sneak of Shadows
Usage: Passive
You recall more about your past life as a rogue. You have +1 to all skills and three times per rest you can skulk with the skill of your past life, gaining bonuses equal to your level to your hide and move silently skills, a +1 bonus to sneak attack damage for every two character levels, and a +1 bonus to hit with sneak attacks for every four levels.

Anyone know if this portion: "+1 bonus to sneak attack damage for every two character levels, and a +1 bonus to hit with sneak attacks for every four levels." is passive or only activated 3 times per rest?

It looks like only 3x / rest from the wording but I wanted to make sure.

[Crazyfruit]

It's part of the clicky.