From writings of Hazrat Mirza Ghulam Ahmad^(as), The Promised Messiah

The Ahmadiyya Gazette, March – April 1992

It would not have been possible for me to have attained this grace if I had not followed the footsteps of my lord and master, the pride of all the prophets, the best of mankind, Muhammad, the chosen one, peace and blessings of Allah be on him. Whatever I have achieved, I have achieved by following him, and I know from verified reliable experience that no man can reach God and obtain a deeper understanding of His ways without following that Prophet, may peace and blessings of Allah be on him.

Now, let me also make it known that the very first thing you are rewarded with, after having completely submitted yourself to the instructions and teachings of the Holy Prophet Muhammad, is that you are granted a new heart which is always rightly inclined, that is to say, a heart which has turned cold upon the love of this material world, and instead it begins to yearn for an everlasting heavenly pleasure. Having achieved this desire, this heart is now fit to receive that perfect and purest love–the love of God. Because of your complete obedience to him, all these blessings are bequeathed to you as his spiritual heritage. (Roohani Khaza’in, Vol. 22: Haqeeqatul Wahi, pp. 64-65)