Prayer For Energy (From Yajur Ved) :-

tejosi tejo mayi dehi vIryamasi vIryam mayi dehi | balamasi balam mayi dehi ojosi ojo mayi dehi | manyurasi manyum mayi dehi sahosi saho mayi dehi ||

Shukla Yajur Veda 19.9

" Thou art energy, give me energy;

thou art manliness, give me manliness;

thou art strength, give me strength;

thou art vigour, give me vigour;

thou art valour, give me valour;

thou art conquering power, give me conquering power.