You can obtain them by attacking a naturally spawned Creaking mob, which causes the nearby Creaking Heart to generate resin clumps on its surrounding pale oak wood blocks. You can then punch the ...

You will need to get as much Farm Resin as you can if you want to explore the underground caves safely in Luma Island.

Resin is required to build the farming village tower in the Establish Our First Village quest; here's how to get Resin in Towers of Aghasba.