I find it deeply fulfilling.

Meaning

It gives me a strong sense of purpose and accomplishment.

Examples

• John: What do you do in your free time?
• Alice: I volunteer at the animal shelter. <b>I find it deeply fulfilling.</b>
• John: That's wonderful! It must be rewarding.
• Alice: It is. The sense of purpose I get...<b>I find it deeply fulfilling.</b>