This Shabad is by Bhagat Sheikh Fareed Ji in Salok Fareed Jee on Pannaa 1378
PrIdw jy qU Akil lqIPu kwly ilKu n lyK ]
AwpnVy igrIvwn mih isru nNØIvW kir dyKu ]6]
fareedhaa jae thoo akal latheef kaalae likh n laekh ||
aapanarrae gireevaan mehi sir na(n)aeevaa(n) kar dhaekh ||6||
Meditation may require a lifetime to master, but it will have been a lifetime well spent. Those who offer instant enlightenment mislead us. After all, we have to bring the mind itself under control, and there is no more difficult task in life. We should be prepared for a lifetime of challenge...