The Hindu belief that fate is all powerful as it is shaped by one's past actions (karma) has also to be read with the declaration in Bhagavad-Gita that the supreme glow of powerful intelligence can burn away and thus pre-empt the impact of all karma: "As a blazing fire turns firewood to ashes, O Arjuna, so does the fire of knowledge burn to ashes all reactions to material activities".
Here is how:
The Brahmavaivarta Purana and certain other narrations conceive of the story of Savitri, who had married Satyavaan, though she had known that, as per astrological predictions, he was destined to die young. Reposing full confidence in the power of her chastity and love which bound her to Satyavaan, she recited regularly an incantation (mantra), taught to her by Anusuya, the wife of the great sage, Atri.
One article
On Satyavan's death on the predicted day, Savitri pleaded with the god of death, Yamaraaja, who she was able to see through her power of chastity (pativrata shakti), to restore her husband's life.
Yamaraaja noted that, as Satyavaan's time had come, he could do nothing. However, impressed with her persistence and devotion, he offered her any other boon. Savitri promptly demanded that she be blessed with children. Instinctively Yamaraaja granted the boon and was embarrassed when Savitri pointed out that it was impossible for this boon to fructify in the absence of her husband, to whom alone she was bound as wife through her vow of chastity (patnivratadharma). Yamaraaja, overcome with emotions of admiration, helplessness and respect, restored Satyavaan to life, uniting the couple to long years of conjugal bliss.
Herein indeed lies the difference between fatalists and those who mould even their destinies through the power of persistence and intelligence!
Any sources