The meaning on the sentence is that quest which is made of finding methods of expression and that it's also, or it happens to also be, reliable to oneself, opens up doorways. How can indigenous speakers distinguish amongst lenis and fortis finals such as /tʃ/ and /dʒ/ as in https://financefeeds.com/weekly-roundup-what-prop-traders-are-really-doing-itrade-loses-license/