After collecting the various nymphs from around Amphoreus in Honkai: Star Rail, the “Garmentmaker” in Okhema will start looking at the wall around the lift, noting that nymphs seem to be showing some type of “hidden message.”
Well, she’s right. They are indeed showing a hidden message and it correlates to the ritual prayer fountains scattered around Okhema. To explain it quickly, the butterflies on the walls mark out the various fountains around Okhema. The symbols that appear at the bottom of the middle wall show what symbol you need to activate in that specific fountain. (A butterfly on the wall will blink as the symbols appear, indicating which one needs which symbol.)
If you don’t want to deal with any of that, you can just follow our guide and interact with the fountains that we do. Note that these fountains can only be activated once per day, the unmarked fountains need to remain blank, and you don’t actually want to pray to the fountains — only get the symbols to show up. If you accidentally activated any, you’ll need to wait until the next real-world day to try again.
Below, we explain how to find the nymph’s hidden message in Honkai: Star Rail.
Nymph’s hidden message puzzle solution in Honkai: Star Rail
You’ll need to set the following symbols at the following altars. It does not matter what order you do this in.
To get the right symbol, you may have to refresh the altar a couple of times. Start a ritual prayer, and if the wrong symbol comes out of the pool, use the time rewinding ability to send it back, and try another ritual prayer. Just keep repeating the process until it shows the correct symbol, and then leave. Do not receive the blessing.
After you set up all four of these altars, some in-game text will pop up about heading back to the nymphs. Go back to the “Garmentmaker” and a huge precious chest will be there for your reward, along with the achievement “Chiping Secret: Golden Journey.” You’ll also get the “Eternal Holy City” Hymn Tablet from the chest as a reward.
Source:https://www.polygon.com/honkai-star-rail-guides/515022/nymphs-hidden-message-solution-okhema-fountain-altars