With the analogy to life, does chess provide some insight into or benefit that connects with life?
Chess makes this point easier to understand, because mistakes are often clearly identifiable in retrospect and not learning from them will lead to the same pattern being repeated in future games. In life sometimes "mistakes" can be harder to quantify and therefore easier to deny.
What motivates chess players? As I see from this game example that with enough brain power, you essentially duel to a near draw (both black and white have the same number of pieces) probably with random outcome.
Playing blindfolded is actually less difficult than it sounds for experienced chess players. I have no problems playing an entire game blindfolded. I suspect that close to 100% of all chess masters (and many lower rated players) are capable of doing so. Difficulty is much harder if asked to play multiple games at once. The record below is extremely impressive:
http://www.blindfoldchess.net/blog/2011/12/after_64_years_new_world_blindfold_record_set_by_marc_lang_playing_46_games/
Being timed and hearing moves in random order also makes things much more difficult. Some of the timed blindfold simultaneous exhibitions I have seen have been unfair IMHO because the clock is not pushed by the announcers until after the spoken move (by Magnus in the case below) is physically made by his assistant (which could be several seconds after the move is vocalized). It is also essential that all commentators speak with perfect chess notation so there is never any confusion (and wasted time) about castling long vs. castling short or which piece is making a capture (Rcxd1 vs Rfxd1, etc).
https://www.youtube.com/watch?v=lqmzadHNSLs
Watch a few blindfold exhibitions to see what I mean.
scenario 1:
Announcer says "On board four white plays knight capture bishop"
Players says "Ncxd5 or Nexd5"
Announcer says "White captures on d5 with the Knight currently on c3"
scenario 2 :
Announcer says "Board four, Ncxd5"
When playing multiple timed games at once scenario 2 is obviously far superior. Skilled announcers and perfect algebraic descriptions are key.