Summary
This quote suggests that when one chooses to always tell the truth, they keep themselves open and vulnerable to others. By not lying, there are no secrets or barriers between oneself and the world. Having "no lock on your door" implies an absence of privacy, as others can always see the real and unfiltered version of who you are. This can lead to a sense of never being alone, as there is an inherent transparency and honesty that allows others to truly know and understand you.