LSAJ

Lao use the word for heart in so many expressions, for examples:

~ to understand is to enter the heart
khao jai ເຂົ້າໃຈ
~ to be glad is to feel good at heart
di jai ດີໃຈ
~ to be angry is to feel bad in the heart
jai hai ໃຈຮ້າຍ
~ to be sorry is to have lost the heart
sia jai ເສຍໃຈ
~ to have empathy is to see the hear
hen jai ເຫັນໃຈ
~ to feel upset is to be unhappy at heart
out jai ບໍ່ແນ່ໃຈວ່າຢາກໝາຍເຖີງ ເອົາໃຈ ບໍ່ ແຕ່ບໍ່ຄ່ອຍກົງກັບປະໂຫຍກພາສາອັງກິດປານໃດຊ່ອຍອະທິບາຍຕື່ມໃຫ້ແດ່

~ to be sensitive (touchy) is to have a small heart
jai noy ໃຈນ້ອຍ
~ to be stingy is to have a narrow heart
jai khap khaep ໃຈຄັບແຄບ
~ to be startled is to drop the heart
tok jai ຕົກໃຈ
~ to be absent minded is to have a heart which floats
jai loy ໃຈລອຍ
~ to hesitate is to have many hearts
lai jai ຫຼາຍໃຈ
~ to be worried is to have a sick heart
bo sabai jai  ບໍ່ສະບາຍໃຈ
~ to be content is to have a serene heart
sabai jai ສະບາຍໃຈ
~ to be without worries is to feel cool in the heart
jai yen ໃຈເຢັນ
~ to be generous is to have a large heart
jai kuang ໃຈກ້ວາງ
~ to have a heavy heart
thouk jai ໜັກໃຈ? ບໍ່ແນ່ໃຈເພາະວ່າຮູ້ສຶກວ່າ Spell ຄຳ ແລະຄວາມໝາຍໃນປະໂຫຍກພາສາອັງກິດບໍ່ເຂົ້າກັນປານໃດ

~ to be happy
souk jai ສຸກໃຈ
~ to be easily persuaded is to have an easy heart
jai ngai ໃຈງ່າຍ
~ to be decisive
jai det ໃຈເດັດ
~ to be bitter to the point of revenge is to have a black heart
jai dam ໃຈດຳ
~ to be charitable is to have a festive heart
jai boun ໃຈບຸນ
~ to be generous is to be big-hearted
jai nyai ໃຈໃຫຍ່
~ to be impatient is to have a hot heart
jai hon ໃຈຮ້ອນ
~ to be patient is to have a persevering heart
jai o thon ໃຈອົດທົນ (Jai Od Thon)
~ to be honest is to have a pure heart
jai bolisud ຫນ້າຈະແປວ່າ: ບໍລິສຸດໃຈ
~ to be brave is to have a daring heart
jai ka ໃຈກ້າ
~ to be timid is to have a cautious heart
jai bo kai ໃຈບໍ່ກ້າ
~ to control one’s emotions is to have a strong heart
jai khart ໃຈແຂງ ? Spell ຄຳ ແລະຄວາມໝາຍໃນປະໂຫຍກພາສາອັງກິດບໍ່ເຂົ້າກັນປານໃດ

Source: http://blog.gotlaos.com/2008/09/lao-are-people-of-heart.html