For corrective feedback (CF) to contribute to second language (L2) development, some cognitive processes need to be completed. Learners need to notice and comprehend the CF, reflect on and deeply process it, and finally integrate it into their interlanguage (Gass, 1997). Written languaging (WL), which requires learners to explicitly explain to themselves why they have received CF, has been proposed as a technique which can stimulate deep cognitive processing of the written CF. In an effort to improve learners' writing accuracy, I adopted WL, whereby upon receiving online direct corrections, learners typed their self-explanations regarding the underlying reasons for their writing mistakes. Then, I engaged in systematic reflection and journaling during a 10-week semester to critically analyze the affordances and limitations of WL. The conclusion, drawn from my perceptions of the usefulness of WL originating from my journal writing, is that WL has the potential to not only facilitate learning for students but also can provide teachers with a rich description of learners' cognitive and affective engagement with CF. Some recommendations are made for better implementation of this instructional technique.