Just like sorrows come to you without your asking, happiness will also come to you like that. You need not ask for it or try very hard to acquire it. Let our efforts not be towards finding enjoyment or going where there is happiness. Because in this world, any happiness is combined with sorrow too. To get a little joy you have to overcome a mountain of sorrow only to find that even that little joy is not permanent and can be taken away from you at anytime. There is fear all the time and every place. There is worry all the time for humans irrespective of wealth, possessions, marital status etc. Hence the only way to be free from these constant stresses is to remember the Lord at all times.