If you are unable to fix your mind steadfastly on Me, then, by faithful practice of devotion, do seek to reach Me, O Dhananjaya. (Bhagavad Gita Chapter 12 Verse 9)
Because the truly religious life is so difficult, Bhagavan, in His great mercy, proceeds to smooth the path for every earnest aspirant, however low his spiritual condition may be. And so Bhagavan Sri Krishna says: If what I told you is too difficult, if you cannot succeed in remembering Me always, never mind; do not get discouraged. I will tell you what to do.
I have told you of abhyasa yoga (in chapter eight of Gita). Practise that, a little at a time. Whenever your mind runs away from Me to other objects, try to bring it back. When your heart runs in search of pleasure, remember that, of all joys, to know Me is the highest joy. I am the essence of all bliss. The greatest worldly pleasure is but an atom of that supreme Bliss, which is God. Therefore try for that highest Bliss. Go to the fountain head. Drink of the living waters and you will never thirst again. Taste of the spiritual joy and worldly joy will no more attract you. All eternity is before you. You need not be discouraged if you do not succeed at once. Try again and again and at last you will succeed.
So first Bhagavan Sri Krishna says: Keep your mind constantly on Me alone. That is the highest life. But if that is too hard to practice, then try to remember Me as often as you can. This must be a constant and faithful attempt. And we have seen previously how, by diverse methods, we can be assisted in such practice – how it can be made easier by taking help of the external world, how we can make the different objects that we come in contact with remind us of God, how special hours of the day may be set aside for such practice and how, in short, thousands of ways will open up to him who strives sincerely. God helps us if we help ourselves. That is, if we make strong and repeated attempts, then the light of Truth, which is God, flashes into and illumines our minds.