Wabi sabi is a Japanese esthetic most often associated with the history of the tea ceremony and a philosophy that not only accepts imperfection, but finds wonder in it.
Wabi sabi is exactly what your journal needs. Wabi sabi honors the beauty of the impermanent or incomplete. Leave a page blank because you don’t know what comes next. Just like real life.
“When the Japanese mend broken objects they aggrandize the damage by filling the cracks with gold. They believe that when something’s suffered damage and has history it becomes more beautiful”- Billie Mobayed. Image and quote from http://freyahmfashion.blogspot.com
Wabi sabi is a profound appreciation for things modest and humble. Write exactly what you feel, be who you are in your journal. It will take your zero draft–those words not even worthy of being a first draft–without complaining.
As an aesthetic, wabi sabi honors things imperfect and impermanent. Get better in time and with practice. Give yourself time. Practice. Honor your journal by loving words.
Wabi sabi is also about connecting. With nature, with other people. We can write by ourselves in the dark, but we long to be heard. Journals listen, but they don’t tell. It may be time to consider telling others what you are writing about. That’s called publishing. Not ready to publish? OK. Just keep writing.
Wabi sabi is about treasuring your ability to connect what you experience and living to tell about it on a blank page. If you are a writer. If you are a potter, you will tell about your experience through your hands and the clay. With fiber if you are a weaver.
Wabi sabi writing is the hardest work you’ll ever do and the most rewarding. If you’ve never kept a journal, it’s time.
—Quinn McDonald keeps a commonplace journal. It just helped her realize that saving money by staying in an inexpensive hotel wastes time by contributing a bad night’s sleep and creating a lot more work functioning the next day.
QuinnCreative 
My journal has been left of late and it’s calling me back. I think I’ll try a new approach . . . in the morning I’ll put the date and if nothing comes I’ll leave it until the evening and if nothing comes then? I’ll leave the page blank and start again. The blank page is fine by me.
Or you can leave half a page blank. To paraphrase Salinger’s “Raise High The Roofbeam, Carpenters,” Possibly with a blank sheet of paper enclosed, by way of explanation.