What is kindness, and how to be a good person will tell us kanji 優 や さ "yasa" kind, caring. The first part of the kanji-man 人 ひ と "hito", at the top right is the hieroglyph 100 百 ひ ゃ く "hyaku", under it is the element "roof", and under the roof the heart 心 こ こ ろ "kokoro". And the last element means "walking slowly".
Now it's time to combine everything into one story. A KIND person can be considered one, who HUNDRED times will protect from troubles under the ROOF of his house the HEART of a person, who WALKS SLOW, has difficulties, with a heavy burden on his shoulders. The short formula of kindness: People, 100 times protect with the roof a heart of a slow walking person!
To memorize this kanji better, try to learn a few common words with this kanji: 優 し い (や さ し い) kind, gentle; 女優 じ ょ ゆ う actress: the first character is a woman - 女, and the second "kind" 優. So an actress must not be just a talented woman, but also a kind one. 声優 せ い ゆ う actor, actress voicing anime. It combines 2 hieroglyphs "voice" 声 (こ え) and 優 "kind, gentle". Together we have a "gentle voice".