Ikhlaas & Tawheed

Ikhlaas and Tawheed are a tree in the heart. Its branches are good actions. Its fruits are a good life in this world, and eternal comfort in the Hereafter, and just like in Paradise the fruits whose supply is not cut off, not are they out of reach, likewise are the fruits of Tawheed and Ikhlaas in this world. 

[Ibn Qayyim, rahimahUllah, - al Fawaid 292]