Loving Heart Compassion in Chinese / Japanese...

愛心 literally means “loving heart.” It can also be translated as “compassion.”

In Chinese, it carries more of a compassionate meaning.

愛心 is rarely used in Japanese anymore, so best if your audience is Chinese.

See Also:  Compassion | Love

戀心 literally means “loving heart.” It can also be translated as “one's love” or “awakening of love.”

戀心 is used exclusively for love between boyfriends and girlfriends or husband and wife.

Breaking down the meaning of each Kanji, the first means love, affection, or tender passion. The second Kanji means heart, mind, or soul (most will read it as the heart).

See Also:  Compassion | Love

佛心 means the Buddha's mind, Buddha-heart, or the spiritually enlightened heart/mind.

The Buddha Heart is detached from good and evil and other such constructs. The Buddha Heart has mercy, compassion, and loving-kindness for all sentient life, the good, the wicked, and all in between.

The heart and mind (心) are the same concepts in the ancient Orient, so you can use heart and mind interchangeably in this context.