四无量心 meaning in English

four unlimited hearts
the four kinds of boundless mind

Disciple mian yan ask for calligraphy on the four boundless minds . instead of the traditional formula , i wrote my contribution to this topic , the unification of four boundless minds
弟子绵延请我书写四无量心。我写下我对此题目的贡献?圆融四无量心以代替传统的说词。
He is white in colour and has four arms representing the four immeasurables of loving kindness , joy , equanimity and compassion . just like limbs of the body , he has become one with the realisation of these qualities and uses them to benefit sentient beings
?脸上露出慈祥的笑容全身雪白其四臂代表?具足了四无量心-慈心悲心喜心舍心能够利益一切有情众生。