What do the squares of spades, flowers and hearts on playing cards represent?

The spade is an olive leaf, symbolizing peace; The heart is the heart, symbolizing wisdom and love. Grass flower is a four-petal black clover, which symbolizes good luck and happiness. Dinamond is a diamond, symbolizing wealth. Opinions vary. . . Many versions. I know that spades represent the sword of guards, I know that clubs are the guns of war, and I know that diamonds symbolize wealth (that is, diamonds). . . This also seems to be regional. Anyway. . The only certainty is ACE. Spades, also known as spades, must be the embodiment of genius. . . Hehehe ~ Look at my answer and give me a little red flower in detail ~