According to psychology,
Memories are based on perception.
Two (or more) people's recollection of a series of events.

My mind consists of our past, present and future.
The past makes me smile, gives me butterflies,
Present tense, is an empty stomach, writer's block.
The future seems too far,
It seems likely to be without him.

His thoughts on the ghosts of Christmas differentiate:
Past, a good time,
Present, never coming to the mind,
And worst of all, Future,
It is blank, an open canvas, never to be used.

But speaking psychologically,
There is some truth to memories,
But whose are trustworthy enough to believe?