This is simple, this is easy, this is fun! Mentality for rebooting and life

The main gain I get from this video doesn't even really concern NoFap.
It's not as if you're suddenly in the relapse-stage of the day, urges are gnawing on you, and you just say: "This is simple, this is easy, this is fun".

It seems to me that the mantra works for a Fapstronaut, because it helps to alleviate the stress/boredom/uncomfortableness of whatever it is you're avoiding with the help of PMO.
During NoFap, you're going back to the thing you fear (my master's thesis for me - for each of us, the challenge takes a different shape). Using the mantra "This is simple, this is easy, this is fun" should help with dealing with the stresses of the thing you fear - and not see it as that big a source of terror and avoidance and procrastination. Using the mantra should help.

Don't forget, the goal isn't to just avoid PMO - the goal is to ready yourself to your particular life challenge you're avoiding with PMO.