But I still don't grasp the meaning of clashing a tomb vs clashing a storage.
Tomb, Storage, Graveyard, all are the same. The context used will change somewhat.
Generally, an element gets entombed when it appears with its tomb / storage.
The earth tomb is said to “Get” or “Possess” the entombed element and its image / action in the chart.
A tomb is closed when it meets a Liu He – six combination. The contents of the tomb are in “Storage” and are not available.
A tomb is opened by a clash, harm, or punishment. The contents of the tomb become available.
ren