The "will to meaning" can be understood in relation to Viktor Frankls book: Man's Search for Meaning-An Introduction to Logotherapy and "will to power" is a concept associated with Nietzsche, though I know very little about the latter and have only started reading Frankl a little while back.
Either term can be found through a quick google search, and I figured it would be easier to have everyone contribute to this discussion with their own understanding/research rather than me trying to summarize something I don't even fully understand yet.
Just curious - which appeals more to you? and what are your reasons? Any critiques of either? thoughts?