Bhagavad Gita · Chapter 17: The Three Kinds of Faith

Bhagavad Gita 17.3

sattvānurūpā sarvasya śraddhā bhavati bhārata | śraddhāmayo'yaṃ puruṣo yo yacchraddhaḥ sa eva saḥ ||

Everyone's faith follows their inner nature, Arjuna. A person is made of faith; whatever a person's faith is, that is what they are.

Modern context

'A person is made of faith. Whatever a person's faith is, that is what they are.' This is one of the deepest lines in the Gita. What we trust and give ourselves to shapes us. Someone who trusts money becomes calculating; someone who trusts love becomes warm; someone who trusts nothing becomes bitter. We become what we believe in.