Fire Logs
One log burning goes out. Two logs and more feed their heat to each other and burn well.

Psychic Structure
Odd shaped blocks stacked on top of each other form a heap. Removing or moving a few will make the structure collapse and coalesce into a smaller heap.

Release pressure, let the gunck ooze up, then wipe it clean. Don't keep pressing down to get rid of the gunck, let it come up first.