WILL drives Destiny - Upanishad

A very profund quote on WILL driving destiny, from Brihadaranyakopanishad (4.4.5):

काममय एवायं पुरुष इति।
स यथाकामो भवति तत्क्रतुर्भवति।
यत्क्रतुर्भवति तत्कर्म कुरुते।
यत्कर्म कुरुते तदभिसंपद्यते॥
kāmamaya evāyam purusha iti
sa yathākāmo bhavati tatkratur bhavati
yatkratur bhavati tat karma kurute
yat karma kurute tad abhisampadyate

You are what your deep, driving desire is
As your desire is, so is your will
As your will is, so is your deed
As your deed is, so is your destiny