The creator of these comics is a Christian, with the message of them being a Christian message/allegory.
The message here is that if you disconnect yourself from God and try to live independent from God, you lose your purpose and/or are helpless to fulfill your "true purpose" (which, to a Christian, "true purpose" = serving/following God).
That said: I'd strongly suggest that people stop posting these comics and giving this guy attention. They're meant for Christians and are not really relevant to people outside of that.
EDIT: I made a (regrettable) visit to the website to satisfy my curiosity and found the title & description:
Absolute Freedom – God (in control of all things) gives us freedom to choose what to do, but we don't get to choose the outcome.
The puppeteer can make you cut your own ties at any time and leave you in a ditch 'cause you were kept a dependent weakling. The author is accidentally promoting self reliance, because that interpretation is not allowed to him or his public. Stupid comics.
Worse, it's an allegory for losing your faith in God. I visited the website and it's full of comics with similar messages. If you value your sanity, I suggest you stay away from the website.
given the 'atm robber comic' from the same cartoonist recently posted, i am guessing that it's somehow meant to represent becoming an atheist. you reject the strings of god and it makes you bad at dancing.
Based on the description the author gave on the website it's a critique of atheists. It's actually about how God gives the freedom to be an atheist but then God won't protect you from the consequences of being free from him. Yada yada