The strongest relation is the one between you and Allah.
Realize this truth, my son, that the Lord Who owns and holds the treasure of the heaven and the earth has given you permission to ask and beg for it, and has promised to grant your prayers. He has told you to pray for His favors that they may be bestowed. He has not appointed guards to keep your prayers from reaching Him. Nor is there any need for anybody to intercede with Him on your behalf.
Think that by simply granting you the privilege of praying for His Favors and Mercies, He has handed over the keys of His Treasures to you. Whenever you are in need, you pray and He confers His Favors and Blessings.
– Extracts of Hazrat Ali’s letter to his son from Nahjul Balagha (Peak of Eloquence) – (read more at the source at Simerg)
LA FATA IL-LA’ALY, LA SAYFA IL-LA DHUL-FIQAR
There is no hero except ‘Aly, there is no sword except (his sword) ‘Zulfiqar’