Symbols - What does heaven look like
Hand sign - ILY

ILY sign combines the letters 'I', 'L', and 'Y' from American Sign Language by extending the thumb, index finger, and little finger while the middle and ring finger touch the palm. It is according to Wikipedia "an informal expression of love".
It is also has in mystical circles the same meaning as the twin horns.
Observations
For iPad/iPhone users: tap letter twice to get list of items.