— from an upsurge of devotion; — of one who is dispassionate; — whatever kind of; — arises; — thought/conviction; — that is the Power of Śaṅkara; — always; — one should cultivate her; — thence (one becomes) Śiva
Whatever insight arises in a detached one through the surge of devotion — that is the Śakti of Śaṅkara. One should constantly contemplate her, and thereby become Śiva.