Those who remember God always are bound to attain Him. By spiritual sadhana, the mind and intellect are purified and the ego-sense disappears.Once the ego-sense is dead you feel you are nothing and God is everything. You realize that whatever was done by you was done by the power of God,and that even the sadhana you did was done by God's grace, nay, by God Himself through you. You feel you are a mere instrument in His hands. Now your surrender to Him is complete and He takes you up higher and higher on the spiritual path.
The man of true religion when he is on the path, is mainly concerned with his own internal struggle for liberation and peace. A steady, persevering and concentrated effort and struggle alone can lead the aspirant to the realisation of God.