One of the attitudes that can creep in and make us take things for granted is complacency.
It may not necessarily be a case of "familiarity breeds contempt".
But it can be quite certain that familiarity can have the consequence of complacency.
And when that happens, a "wake-up call" may be necessary.
In the gospel, Jesus reproached His disciples for their incredulity and obstinacy, because they had refused to believe those who had seen Him after He had risen.
He had to wake them up from their disbelief in order to send them out to the whole world and proclaim the Good News to all creation.
As for us, we need to guard against the complacency that can stifle our faith and make us mediocre Christians.
Let us keep our focus on Jesus our Risen Lord and He will keep our hearts burning with love for Him and the zeal to be witnesses of the Good News of salvation for the world.