The spirit of adventure implies exciting , challenging, some times risky undertakings, life cannot be lived well with regards of not having done certain things. in Mark Twain's words, we must "Explore, Dream Discover ".
The many hidden facts of universe can be experienced by only on who dares to explore,adventure could be something as simple as travelling to a new place or as challenging as bungee jumping

The willingness to  undertake adventure is a necessary part of life  some people consider their jobs to offer the necessary adventure in life while some find it in driving racing cars. i believe that a life would be definitely dull . adventure according to me is the real essence of life.
travelling  or vacationing is a good way to explore around and experience vivid cultures and traditions . 

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