We are all empty vessels. Until we discover fulfillment, but fulfillment isn't fulfilling until it dervies from within.
Fulfillment is effectively the spice of life. Every man, woman, and child on this planet is driven to seek some degree of fulfillment. We seek fulfillment in many forms, be it through friendships, sexual parterships, romantic relationships, financial success, prayer/meditation, career-driven achievements, personal fitness gains, etc.
Self-check: Ask yourself what sort of fulfillment do you find yourself focused on right now?
Next, ask yourself if that fulfillment was actually fulfilling. It can be as simple as "I was hungry so I ate a box of cookies." Don't worry, we've all been there. Although, it's likely that while that action was comforting to you in the moment, it most likely isn't fulfilling. You might've been stress-eating and trying to relieve yourself, temporarily, of a stressing thought through a distraction that wasn't constructive to your inner peace.