I think essentially the meaning of life is probably the journey and not really any one thing or an outcome or a result. I think it's kinda the process and I think that if you can find happiness in the process then maybe that's it.
Ice shelves in general have episodic carvings and there can be large icebergs breaking off - I'm talking 100km or 200km long - every 10 or 20 or 50 years.