Start with basic water. Cultivate in a a stream, under a waterfall, etc. Then decide I need something bigger. Go swimming in a river. Still not big enough. Drifting in a river takes me to the sea. Pretty good, but we can do better. Travel to an ocean. Now this big enough! Realise that all this while, what I was pursuing wasn't water, but more water. Fall asleep in the ocean. Comprehend the concept of vastness. Become the universe.