I find that most life-affirming moments are discovered in that psychological space between chaos and order, between fear and joy, facing into the unknown of existence. This might be why I love to travel as I do, it separates you from the illusions of daily comfort and forces you into the unknown.
I think and meditate a lot on kundalini tantra, meditative states of nondualism, or on that blissful nothingness we feel with a simple walk through nature.
Traveling the world you can experience the shared humanity and compassion that binds us in this wonderful striving existence. Every culture, every person, and every bit of life is fundamentally connected.