Allah Ta'ala's blessings and favours are showered upon His servants at all times. However, on certain occasions the mercy, barakah and forgiveness of Allah Ta'ala are showered upon us to an even greater extent. One such occasion is the "Fifteenth night of Sha'baan". It is up to us to take advantage of these occasions and earn the forgiveness of Allah Ta'ala.
It is narrated from Hadhrat Mu'az bin Jabal (Radi Allahu Anhu) that Rasulullah (Sallallahu Alayhi Wasallam) said: "On the fifteenth night of Sha'baan, Allah Ta'ala bestows His special attention on His entire creation. He then forgives His entire creation except one who worships idols and one who has hatred for others.
In another Hadith, Rasulullah (Sallallahu Alayhi Wasallam) said: "On the fifteenth night of Sha'baan, Allah Ta'ala descends to the nearest heaven. Thereafter Allah Ta'ala announces; 'Is there anyone who seeks forgiveness so that I may forgive him? Is there anyone who desires anything so that I may grant his wish?' Allah Ta'ala then fulfils the requests of all except one who worships idols and an adulterer."