I think when you marry life is suffering, and resistance is suffering, you get to the root of it. Ego is ultimately the root of suffering, resisting what is. Our cravings and aversions result in us not being able to be meet the present as it is, and accept it. It causes us to artificially label experience with qualifiers such as good/bad etc

As we root out our cravings and aversions, our egoic programming, fear stops running the show, and gratitude and contentment takes it's place. We're able to meet every moment as it is and appreciate the perfection.