It is letter number 26 in the Arabic character set. 16 Doer of what He wills. Wadood - Loving is one of the Attributes of Allah. Love has two parts. Love is something that is not visible.
Love is something that is shared between two.
We cannot measure love, but we can see the effects of love. A seeker in search of Allah embarks on this course for no other reason than Love for his Creator. So that he may share his Love with Allah. When we first start seeking Allah, Allah will test our love for Him with hardships. These hardships can be as different as the number of different seekers.