That He comes like a thief in the night, He could come at anytime. In additon, His promise of coming back being fulfilled shoud get our attention.
It should inspire hope that the end is not this world. We have a second home, where there will be no more tears, trials, drama, fear or worries. A place where we will be with the Savior forever.
It should inspire self-control because what we receive (rewards) and judgement is based upon how we live our life now.
When we don't really expect Christ to come soon we become lazy, sinful, no regard for righteousness. We live as if all we have is here