The love of GOD
The love of GOD for us (man) is very astonishing if you think about it. We truly have nothing to offer GOD that HE doesn't already have, yet HE died for us, HE answers our prayers, HE leads us, HE provides for us.
A deeply unconditional love from a GOD that is so mighty, and great. I feel so humbled meditating on HIS great love.