umm sis I think 사랑 means to believe on someone truly for ever & help always in each & every difficulty.Love is selfless & demands sacrifice.Love can be of different types,like 사랑 betweet family members,or 사랑 between 프렌즈 또는 사랑 for things we own 또는 the 사랑 which we have for person we admire and want to adore that person all the time.When we 사랑 someone ,no matter what they do,you still 사랑 them and when they do something against your heart,you become heartsore but 당신 still 사랑 them :)
Actually,I can write an essay on 사랑 c: but for now,this much is enough. & also 사랑 can change a person's life;make him/her dull 또는 can make him/her the happiest person of the world and yes agreed with tejas i also think that it is the most beautiful thing in the world.