Shoe cabinets are usually multi-layered, with five layers as the best, because it represents the coexistence of five elements. It's not a big problem to have fewer than five storeys in the shoe cabinet, but more than this floor is a no-no, because shoes belong to the soil and should be "down-to-earth". If the shoes are put too high, it will affect the wearer. It is easy to sprain and fall when walking. Furthermore, shoes represent "foundation", which is stable and helpful for career development. Similarly, it is best to put five pairs of shoes on each floor of the shoe cabinet to achieve the balance of the five elements. It's easy to turn into fire when your toes are facing you, so remember to point your toes inward.