Friend is one, who (F)inds you in a (R)ush of people, (I)nspires you to do something in life, catch your (E)motions and (N)ever leaves you till (D)eath.
jise dil ki "KALAM" or bharose ki "INK" kehte hai, jise lamho ki "KITAB" or yaado ka "COVER" kehte hai, yahi wo "SUBJECT" hai jise log "FRIENDSHIP" kehte hai.
When emotions play their role the heart cries.When heart cries it does not make any sound & the person who listens to that unmade soundis called a Friend.