There is nothing of which to be afraid. He is, first and foremost, a Father – the loving Father.
Approach Him, talk to Him. Ask Him to give you the grace of letting you come to know Him.
He will give you this grace, because the deepest and most intense desire of His Divine Heart is that every single individual on earth returns to live in Him, in order to be able to enjoy unparalleled happiness, joy, peace, and love for eternity.