Self is attained be knowledge of self, it is self alone that conquered by self, not through anything else, strength could be define as a capacity to interface the chapters of life or merits, and truth alone is the booster, though strength is resultant that based on the knowledge of self yet self activated with truth may help self to recover from the shadow of Maya, to make it it for self, on the sphere of knowledge there is nothing above Atman Jnana,
May Lord Bless all,
Thanks please